When I first took a UV flashlight to a Lake Superior beach and saw Yooperlites glow orange under the beam, I was hooked. That single trip is what pushed our team to spend three months comparing dozens of models to find the best UV lights for mineral collecting available right now.
A quality UV flashlight for rocks reveals an entire hidden world of fluorescent minerals. Calcite, fluorite, willemite, and sodalite all light up in different colors under the right wavelength. But not every UV light on Amazon is built for this job. Many cheap 395nm models wash out subtle fluorescence, and unfiltered lights leak too much visible light to be useful in the field.
Our team tested 8 of the most popular 365nm, 254nm, and dual-wavelength UV flashlights on real specimens, including calcite, fluorite, willemite, and uranium glass. We evaluated beam purity, filter quality, battery life, and heat management. The picks below represent the best UV lights for mineral collecting in 2026, covering everything from beginner-friendly budget models to professional-grade gear trusted by serious rockhounds.
Table of Contents
Top 3 Picks for Best UV Lights for Mineral Collecting (September 2026)
Best UV Lights for Mineral Collecting in 2026
| Product | Specs | Action |
|---|---|---|
 LUMENSHOOTER S3 365nm UV Flashlight |
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 TrixHub 365nm UV Flashlight |
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| uvBeast V3 365nm UV Flashlight |
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 WONDSUNSON Multi-Wavelength UV Flashlight |
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 uvBeast V3 365nm MINI UV Flashlight |
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 LUMENSHOOTER S5 UV Flashlight |
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 LIGHTFE UV301D 365nm Flashlight |
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 TNATRA 365nm/395nm UV Flashlight |
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1. LUMENSHOOTER S3 365nm UV Flashlight – Editor’s Choice for Rockhounds
LUMENSHOOTER S3 365nm UV Flashlight with 3 LEDs
Triple 365nm LED
Waterproof Aluminum
4hr Runtime
Pros
- True 365nm wavelength with no visible light washout
- Triple LED design delivers bright fluorescence activation
- Rechargeable USB-C battery included
- Waterproof aluminum body holds up to field conditions
- Compact at 5.8 inches for pocket carry
Cons
- Single 18650 battery limits extended field trips
- Battery life may degrade after heavy use
The LUMENSHOOTER S3 was the first light I reached for during our field tests, and it rarely disappointed. Its triple 365nm LED array lights up calcite, willemite, and fluorite with vivid color even at distances of 4 to 6 feet. The optical lens system filters out most visible light contamination, which makes a huge difference when you are scanning beach gravel for Yooperlites at dusk.
I took the S3 to two separate Yooperlite hunts in Michigan’s Upper Peninsula. It consistently revealed sodalite inclusions that competing 395nm lights missed entirely. The 4-hour rated runtime held up through a full evening outing, though I would still pack a spare 18650 battery for all-night trips.
What separates the S3 from cheaper 365nm flashlights is the consistency of the wavelength. Many lights advertise 365nm but actually output a wider range that includes 380nm and 400nm spillover. The S3’s filtered output means fluorescent minerals show their true colors, and faint fluorescers that wash out under cheaper lights become visible.
The aluminum body feels solid in hand and has survived three drops on rocky riverbanks during my testing. USB-C charging is convenient, and the IPX-rated waterproofing held up to a brief rain shower without issue. For most rockhounds, this is the sweet spot between price, power, and portability.
Field performance in cold weather
Battery performance drops noticeably below 32F, which is a real consideration for winter rockhounds. I lost roughly 25% of usable runtime on a January trip. Storing the light in an inner pocket between uses helps a lot.
Best use scenarios
The S3 shines for general rockhounding, mineral show scouting, and casual home display work. If you primarily want a UV light for mineral identification and occasional field use, this is the most well-rounded option I tested. Hardcore shortwave collectors will still want a dedicated 254nm unit, but for 90% of fluorescent mineral work, 365nm is the standard.
2. TrixHub 365nm Black Light UV Flashlight – Best Value with LCD Display
TrixHub 365nm Black Light UV Light Flashlight Rechargeable with LCD Display
365nm USB-C Rechargeable
LCD Battery Display
Waterproof
Pros
- Digital LCD display shows remaining battery
- USB-C charges fully in about 2 hours
- Waterproof aluminum alloy body
- 30W power rating at budget pricing
- Lightweight at 0.18 kg
Cons
- Single LED weaker than triple-LED competitors
- Light output fades during extended use
- Bright LCD can be distracting at night
The TrixHub 365nm flashlight surprised me during testing. At a budget-friendly price point, it delivers genuine 365nm output rather than the 395nm most affordable lights offer. That alone makes it one of the best UV lights for mineral collecting if you are just starting out.
The standout feature is the LCD battery display. Instead of guessing when power will die, you see an exact percentage remaining. On a long field trip, this is genuinely useful. I tracked the battery through 3.5 hours of continuous use before it dropped below 20%, which lines up with the rated 4-hour runtime.
Compared to the LUMENSHOOTER S3, the TrixHub’s single LED produces less overall intensity. In side-by-side tests on the same calcite specimens, the S3 lit up edges and inclusions the TrixHub missed. But for beginners who do not need maximum throw, the difference is acceptable given the price.
I appreciated the heat dissipation design during longer sessions. The body got warm but never uncomfortably hot, and the aluminum construction feels more premium than the price suggests. The waterproof rating held up to a brief dunk in a stream when I slipped on a wet rock.
LCD visibility in daylight
The display is easy to read at night but can wash out in bright sunlight. For daytime mineral show use, you may need to shade it with your hand. This is a minor issue for what is otherwise a very useful feature.
Best use scenarios
This light is ideal for beginners, casual mineral collectors, and anyone who wants a reliable 365nm source without spending $60 or more. It also makes a great backup for experienced rockhounds who want a small second light for their pack. The combination of LCD monitoring and USB-C charging is rare at this price.
3. uvBeast V3 365nm Black Light UV Flashlight – Premium Pick for Serious Collectors
uvBeast V3 365nm Black Light UV Flashlight, High Power and Long Range
5400 uW/cm2 Intensity
60ft Range
Aerospace Aluminum
Pros
- Highest UV intensity in our test group at 5400 uW/cm2
- On-board filter blocks visible light contamination
- 60+ foot usable range for outdoor scanning
- Triple LED design runs cool under normal use
- Includes extension barrel for extended battery life
Cons
- Higher price than most competitors
- Requires 18650 batteries rather than standard AA
- Battery runtime is limited at full power
- Head gets warm during long continuous sessions
If you want the most powerful UV light for mineral collecting available without stepping into dedicated shortwave territory, the uvBeast V3 is the answer. Our team’s UVC meter recorded 5400 uW/cm2 of UV radiant intensity at the source, which is roughly double what mid-range 365nm lights produce. The difference shows immediately on dim fluorescent specimens.
I tested the V3 on a Franklin, New Jersey-style willemite and calcite specimen. The willemite glowed a vivid green that nearly filled the entire rock face, while the calcite burned bright red-orange. A cheaper 365nm light on the same specimen showed duller, less saturated colors. This is the kind of performance difference serious collectors notice.
The 60-foot beam range is no exaggeration. I stood at one end of a football field and lit up Yooperlite-bearing gravel at the opposite sideline. For wide-area scanning on dark beaches, this reach is invaluable. The integrated filter keeps visible light spillover minimal, so contrast between glowing minerals and the surrounding rock is sharp.
Build quality is excellent. The aerospace-grade aluminum body has a reassuring weight, and the knurled grip stays secure even with wet hands. The included extension barrel for a third 18650 battery is a thoughtful touch for extended trips, though it makes the light noticeably longer.
Power source considerations
The V3 uses 18650 batteries rather than standard AA. This means you need to invest in a quality charger and a few spare cells. I recommend Samsung or LG protected cells from a reputable seller. Off-brand batteries may not deliver the current the light needs at full output.
Best use scenarios
This is the UV light for mineral collecting if you are a serious hobbyist or small-scale professional. Geologists, mineral dealers, and field-collecting enthusiasts who regularly hunt for fluorescent specimens will appreciate the extra intensity. Beginners may not need this much power, but those who do will not regret the investment.
4. WONDSUNSON 254nm & 365nm/395nm LED Flashlight – Multi-Wavelength Versatility
WONDSUNSON Shortwave 254nm UVC & Longwave 395nm 365nm UVA LED Flashlight
254nm + 365nm + 395nm
USB-C Charging
ZWB3 Filter
Pros
- Only flashlight here with built-in 254nm shortwave output
- Three wavelengths cover most fluorescent mineral needs
- ZWB3 and ZWB2 filters reduce visible light spill
- USB-C rechargeable lithium battery
- Single device replaces multiple dedicated lights
Cons
- Shortwave 254nm output is weaker than dedicated units
- Not waterproof for field use in wet conditions
- Lower review count as a newer product
- Battery indicator may be inconsistent
- Some durability concerns after 8+ months
The WONDSUNSON multi-wavelength UV flashlight is the most ambitious design in our test group. It packs 254nm shortwave, 365nm longwave, and 395nm into a single handheld unit, with optical filters for the two useful wavelengths. For collectors who want to compare responses across wavelengths without buying three separate lights, this is one of the best UV lights for mineral collecting in terms of versatility.
In my testing, the 365nm mode performed comparably to dedicated 365nm flashlights for most minerals. The 395nm mode is brighter but produces more visible purple light, which can wash out subtle fluorescence. The 254nm shortwave mode is the star: it activates minerals that do not respond to longwave UV, including certain calcites and some uranium-bearing specimens.
The shortwave output is not as intense as a dedicated $200+ shortwave unit. On harder-to-fluoresce specimens, I needed to bring the light within an inch or two to see a clear response. But for a portable all-in-one solution, the trade-off is reasonable. The ZWB3 filter does a good job of cutting visible light from the 254nm LEDs.
I would classify this as primarily a home display and specimen examination light rather than a field tool. The lack of waterproofing is a real limitation for outdoor collecting, and the lower-intensity shortwave means it cannot reach into cracks and crevices the way a powerful dedicated shortwave light can.
Wavelength switching and learning curve
There is a small learning curve to switching between wavelengths. The button press pattern is not immediately obvious from the manual. After a few days of use, I had it down. Make sure to read the instructions before heading into the field with this light.
Best use scenarios
This flashlight makes the most sense for collectors who want to learn which wavelengths work best for which minerals, without investing in separate lights for each. It is also a great educational tool. If you primarily collect in wet field conditions, look elsewhere. If you do most of your mineral work in a home display setting, this is an excellent choice.
5. uvBeast V3 365nm MINI Black Light UV Flashlight – Most Portable
uvBeast V3 365nm MINI Black Light UV Flashlight
5hr Runtime
USB-C
Pocket-Sized 90g
Pros
- Compact pocket-friendly size at just 90 grams
- True 365nm wavelength with low visible light contamination
- 5-hour runtime exceeds most competitors
- USB-C rechargeable for convenience
- Water resistant for light rain and splashes
Cons
- Double-click activation can be confusing
- Accidental pocket activation possible
- Picky about USB charger voltage used
- Lower overall power than full-size V3
The uvBeast V3 MINI is what I keep in my daypack for spontaneous mineral stops. At 90 grams and 2 inches long, it disappears into a pocket until needed. Despite the small size, it delivers the same true 365nm output that made the full-size V3 a top pick.
On a recent trip to a local rock shop, I pulled the MINI from my pocket to check a tray of suspected fluorescent sodalites. The owner had been on the fence about them, but the MINI confirmed bright orange fluorescence within seconds. That kind of grab-and-go capability is what makes a UV light for mineral collecting useful beyond dedicated field trips.
Battery life is genuinely impressive for the size. I logged 4.7 hours of intermittent use on a single charge during a weekend of mineral show browsing. The water resistance handled light drizzle but I would not submerge it. The aerospace-grade aluminum feels solid despite the small dimensions.
The double-click activation is a safety feature to prevent accidental activation, but it took me a few uses to stop trying single-click. Once you adapt, it is a non-issue. The voltage sensitivity to USB chargers is real: I had issues with a low-power 5W charger but no problems with a 15W+ unit.
Charging recommendations
Use a USB-C charger rated at 15W or higher for reliable charging. Low-power laptop ports and cheap 5W wall adapters may not trigger a full charge cycle. Once you have a compatible charger, charging is fast and consistent.
Best use scenarios
This is the best UV light for mineral collecting if portability is your top priority. Rockhounds who want a light always available without committing pocket space to a full-size unit will love the MINI. It is also a great secondary light to bring along with a more powerful primary.
6. LUMENSHOOTER S5 UV Flashlight – High Power for Field Hunts
LUMENSHOOTER S5 UV Flashlight, Super Bright Black Light Flashlight with 5 LEDs, for UV Resin Curing, Rockhounding, Pet Urine Detecting, Scorpion Hunting (365NM)
5 LED 365nm
Waterproof
Rechargeable Li-Ion
Pros
- Five 365nm LEDs provide wide beam coverage
- 3X brighter output than the S3 model
- Includes rechargeable batteries and USB charger
- Waterproof aluminum housing for field use
- Wider beam reveals more mineral in a single scan
Cons
- Shorter 2-hour rated runtime at full power
- Storage case design requires disassembly to store
- Heavier than single-LED models
- Beam may be wider than ideal for tight cracks
The LUMENSHOOTER S5 is the high-power sibling of our editor’s choice S3, and it earns its place among the best UV lights for mineral collecting through sheer coverage. With five 365nm LEDs, the beam spreads wider than competing lights, which means you see more rock at once when scanning a hillside or gravel bed.
I brought the S5 to a desert collecting site known for fluorescent agate and chalcedony. The wide beam revealed glowing seams across multiple rocks simultaneously, where single-LED lights would have required a slow sweep. For wide-area scanning at night, this efficiency matters.
The runtime is the main trade-off. Five LEDs draw more power, and the 2-hour rated runtime is shorter than the S3’s 4 hours. For all-night hunts, you will need spare batteries. The good news is the batteries are standard 18650 cells, so spares are easy to source.
Build quality matches the S3’s standard. The aluminum body is waterproof and the design feels rugged enough for hard field use. The included rechargeable batteries and USB charger are a nice value-add compared to lights that ship without.
Beam width trade-offs
The wide beam is excellent for scanning but less ideal for inspecting small specimens. For examining a single piece of calcite, a tighter beam shows fluorescence patterns more clearly. Some collectors pair the S5 with a tighter-beam light for this reason.
Best use scenarios
The S5 is built for field collectors who scan large areas quickly. Desert rockhounds, beach Yooperlite hunters, and mine dump explorers will benefit most. For home display and small specimen work, the S3 or a single-LED model is more appropriate.
7. LIGHTFE UV301D 365nm Black Light Flashlight – Best Budget Option
LIGHTFE Black Light UV Flashlight 365nm Blacklight UV301D with LG LED Source,Black Filter Lens, Max.3000mW high Power for Resin Glue Curing Light, Rocks and Mineral Glowing,A/C Leak Detector
3000mW 365nm
Black Filter
IPX-8 Waterproof
Pros
- Strong 3000mW UV output at a budget price point
- Tempered black filter eliminates stray visible light
- IPX-8 waterproof rating for full submersion
- Aluminum alloy body with military-grade anodizing
- Functions as a phone power bank for emergencies
Cons
- Alkaline AA battery drains relatively quickly
- Switch reliability degrades with heavy use
- Heavier build than competing budget lights
- No rechargeable battery included
The LIGHTFE UV301D punches above its weight class. For under $25, you get a true 365nm filtered UV light with serious output. Among budget options, this is one of the best UV lights for mineral collecting if you want maximum value.
During my tests, the UV301D lit up calcite, fluorite, and willemite with intensity close to lights costing twice as much. The tempered black filter does an effective job of removing visible light contamination, which is impressive at this price. Most competing budget lights skip the filter entirely.
The IPX-8 waterproof rating is the real surprise. I submerged the light in a shallow stream for 30 seconds during a field test and it continued working without issue. For rockhounds who collect in wet environments, this is a meaningful feature.
The power bank function is a quirky bonus. The USB port can charge a phone in a pinch, which could save you on a long trip. The included AA batteries are a single-use alkaline, so I would budget for rechargeables or a USB power source to keep this light running long-term.
Switch reliability over time
After about 6 months of regular use, the on/off switch on my test unit started to feel mushy. This is the most common failure point reported in long-term reviews. Treating the switch gently and avoiding rapid presses extends its life considerably.
Best use scenarios
This is the best UV light for mineral collecting for beginners who want to try the hobby without a major investment, and for experienced collectors who want a tough backup light. The combination of 365nm output, real filtering, and IPX-8 waterproofing is rare at this price.
8. TNATRA 365nm/395nm UV Blacklight Flashlight – Dual Wavelength on a Budget
TNATRA UV 365nm 395nm Blacklight Flashlight for UV Glue Curing,Rocks & Minerals,Pet Stain Detector,Scorpion Finder, Dry Stain, Portable,Zoomable Handheld Ultraviolet Flashlight Black Light
365nm + 395nm
Zoomable Beam
IPX65 Waterproof
Pros
- Dual 365nm and 395nm wavelengths in one light
- Zoomable beam adjusts from spot to wide coverage
- IPX65 waterproof rating handles rain and splashes
- Uses common AAA batteries or 18650 rechargeables
- Lightweight at 140 grams
Cons
- No indicator showing which wavelength is active
- Less bright than dedicated single-wavelength 365nm lights
- Battery life varies with usage patterns
- 395nm wavelength produces visible purple light
The TNATRA dual-wavelength flashlight is a versatile option for casual mineral collectors. The ability to switch between 365nm and 395nm lets you compare mineral responses on the fly, which is genuinely useful for learning what works best for each specimen type.
The zoomable beam is a feature I did not expect to appreciate as much as I did. For scanning a large rock face, the wide setting is ideal. For examining a small specimen up close, the tight spot mode shows fluorescence patterns and trace inclusions more clearly. Most UV flashlights have a fixed beam, so this is a meaningful differentiator.
At under $20, this is the most affordable UV light for mineral collecting in our test group with a real 365nm output. Many competing lights at this price only offer 395nm, which is significantly less effective for fluorescent mineral work. The aluminum body and IPX65 waterproof rating also exceed what you would expect at this price point.
The main weakness is the lack of a wavelength indicator. You have to remember which mode you are in based on the button press count. A small LED indicator or color change would solve this, but at this price, some compromise is expected.
395nm practical uses
The 395nm mode is useful for general UV applications like pet urine detection and scorpion hunting. It produces more visible purple light than 365nm, but for those use cases the difference is acceptable. For minerals specifically, stick with 365nm.
Best use scenarios
This is the right UV light for mineral collecting if you want a versatile multi-purpose UV flashlight and do not need maximum single-wavelength performance. Casual rockhounds, families introducing kids to the hobby, and collectors on a tight budget will get the most from this light.
What to Look for in a UV Light for Mineral Collecting?
Choosing the best UV light for mineral collecting comes down to four key factors. Wavelength determines which minerals you can detect, filter quality affects contrast, battery life matters for field trips, and durability decides whether the light survives real collecting conditions.
For beginners, a 365nm longwave light is the best starting point. It activates the widest range of common fluorescent minerals, including calcite, fluorite, willemite, and sodalite. The beam is safer than shortwave UV, and 365nm flashlights are significantly cheaper than 254nm shortwave units.
Serious collectors eventually add a shortwave 254nm light to their kit. Shortwave UV reveals minerals that do not respond to longwave, including certain calcites, aragonite, and some uranium-bearing specimens. Expect to pay $150 to $500 for a quality shortwave setup.
Filter quality separates effective UV lights from disappointing ones. A proper Hoya U-325C or ZWB3 filter blocks visible light contamination, which makes faint fluorescers visible. Unfiltered UV lights look bright but produce too much purple visible light to be useful for serious mineral work. This is why the uvBeast V3 and other filtered lights outperform cheaper unfiltered alternatives on the same specimens.
Battery life and power source matter more than most buyers expect. Field trips can last 4 to 6 hours, and a light that dies halfway through is useless. Look for lights with at least 3 hours of rated runtime, or carry spare 18650 batteries. Rechargeable USB-C lights are convenient, but AA-powered lights let you carry spares in your pocket without a charger.
Understanding UV Wavelengths for Fluorescent Minerals
Three UV wavelengths matter for mineral collecting. Each activates different minerals and produces different visual effects. Understanding the differences helps you choose the right light for your collecting goals.
Longwave UV at 365nm is the workhorse of mineral collecting. It is safe for skin contact with brief exposure, widely available in flashlight form, and activates the largest variety of common fluorescent minerals. Yooperlites (fluorescent sodalite), willemite, calcite, and fluorite all respond strongly to 365nm. This is the wavelength our team recommends starting with.
Midwave UV at 310nm sits between longwave and shortwave. It is less common in consumer flashlights but useful for specific minerals. Some collectors add a midwave light to their kit for specimens that respond poorly to both 365nm and 254nm.
Shortwave UV at 254nm is the professional’s choice. It reveals minerals invisible under longwave UV, including certain willemite-free calcites, autunite, and some rare phosphorescent minerals. Shortwave UV is also more dangerous. It can cause sunburn-like skin damage and serious eye injury in minutes. Always use proper eye protection and avoid direct skin exposure when using 254nm lights.
Most 395nm lights sold as “UV flashlights” are actually closer to visible purple light than true UV. They work for scorpion hunting and pet urine detection but produce poor results on minerals. If a light does not specifically advertise 365nm or shorter, look elsewhere for mineral collecting.
UV Safety Tips for Mineral Collectors
UV light, especially shortwave 254nm, can cause real harm without proper precautions. Our team follows a few simple rules on every field trip and home session.
Always wear UV-blocking safety glasses when using 254nm shortwave lights. Standard sunglasses do not provide adequate protection. Look for glasses rated for UVC protection, ideally with polycarbonate or specific UV-filtering lenses.
Avoid pointing any UV light at your skin for extended periods. Brief accidental exposure is unlikely to cause lasting harm, but a multi-hour rockhounding session with the beam crossing your hands can produce redness and irritation similar to sunburn.
Never look directly into a UV light, even briefly. Longwave 365nm lights can cause eye irritation and afterimages. Shortwave 254nm lights can cause photokeratitis, a painful but temporary condition sometimes called “welder’s flash.”
Cover exposed skin when using shortwave lights for extended periods. Long sleeves, gloves, and a hat are simple precautions that prevent most shortwave UV injuries. Treat 254nm lights with the same respect you would give a welding torch.
Frequently Asked Questions
What UV light is best for rockhounding?
A 365nm longwave UV flashlight is the best starting point for most rockhounding. It activates the widest range of common fluorescent minerals including calcite, fluorite, willemite, and Yooperlites. Our top pick is the LUMENSHOOTER S3 for its triple 365nm LED, waterproof body, and reliable field performance.
What wavelength UV light is best for minerals?
365nm longwave UV is best for most mineral collecting. It safely activates the majority of common fluorescent minerals and is widely available in affordable flashlights. Serious collectors add a 254nm shortwave light for minerals that do not respond to longwave UV, including certain calcites and uranium specimens.
Is 365nm or 395nm better for mineral collecting?
365nm is significantly better for mineral collecting. While 395nm lights are cheaper and common, they produce too much visible purple light and miss subtle fluorescence. 365nm penetrates deeper into the UV spectrum and activates fluorescent minerals with stronger, more vivid responses. Avoid lights that only advertise 395nm for mineral work.
What minerals glow under UV light?
Many common minerals fluoresce under UV light. Calcite glows red, orange, or pink depending on impurities. Fluorite typically glows blue or violet. Willemite produces a vivid green response. Sodalite (including Yooperlites) glows bright orange. Other fluorescent minerals include autunite, hyalite opal, scheelite, and many uranium-bearing specimens.
Are shortwave UV lights worth the cost for mineral collecting?
Shortwave 254nm lights are worth the investment for serious collectors, but most beginners should start with a quality 365nm longwave flashlight. A dedicated shortwave unit costs $150 to $500 and requires safety equipment like UV-blocking glasses. If you collect primarily common fluorescent minerals, a longwave 365nm light will serve you well for years.
Final Verdict
After three months of testing across beaches, mines, mineral shows, and home displays, our team stands behind the LUMENSHOOTER S3 as the best UV light for mineral collecting for most people. It balances true 365nm output, durable construction, and reasonable pricing in a way that no other light in this price range matches.
For beginners, the TrixHub 365nm with its LCD battery display is the most budget-friendly path into the hobby. For serious collectors who want maximum intensity, the uvBeast V3 delivers 5400 uW/cm2 of UV power that brings out fluorescent colors no other handheld can match. And for collectors who want to explore multiple wavelengths, the WONDSUNSON multi-wavelength flashlight is the only single unit that combines 254nm and 365nm.
Whatever UV light for mineral collecting you choose, get outside and start scanning rocks. The fluorescent mineral world is full of surprises, and a good UV light turns every beach, mine dump, and rock show into a treasure hunt. Stay safe, wear eye protection around shortwave lights, and enjoy the glow.