Do you have a link for a recommendation on a 3rd cell for this light?

Yes we do. But don't think we can post the url here as it is outside of Amazon. But, please allow us to offer some guidance. There are TWO OPTIONS to extend working time on a single charge of the cells. 1) Add third cell using the supplied extension barrel, or 2) Use higher capacity (mAh) 18650 cells, for example 3200mAH cells will give you around 5-6+ hours of working time. HOWEVER, you will see examples which say 9000mAh. The highest known capacities at the time of this writing is near 3400mAh. Anything beyond that should be examined closely as these are often inflated figures. It is better (although not mandatory) to go for good manufacturers such as Panasonic, LG, Sony, Samsung, and the like. Also, a very quick check on any examples you have is to weigh them. If any one cell is below 40 grams in weight then this indicates poor internal cell chemistry. Hope this helps. [uvBeast]

What’s the difference between this leds uv and nitchi uv (both 365 nm)?

Maybe they are from Nichia. Not many manufacturers of 365 LEDs. Makes no difference though. It's real.

Can you check oil leaks in automotive? Engine, transmission fluids etc?

Indeed. Although UV reactive dye will need to be used.

Can I purchase a clear lens separately if I don’t want to run in 365nm?

Hi Nicholas. Thanks for your question. You will always be emitting 365 nanometer wavelength UV even if you fit a clear lens. That's because the LEDs on the V3 365nm emit at 365nm wavelength. If you need a different wavelength then you'll need different LEDs. The only other wavelength LEDs available are at the 385nm and upwards end. Visible light is at around 395nm+. (LEDs also come in the 270nm range btw which is the dangerous UV). Please note that what you can use a 385nm+ UV flashlight for, a 365nm flashlight will also do in the majority of use cases. Hope that helps. [uvBeast]

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uvBeast V3 365nm Black Light UV Flashlight – High Definition Ultraviolet - HIgh Power and Long Range Professional Grade Beam Best for Professional/Commercial Use – USA Stock

Product ID: 260574797

Details

Colour
Metallic Black
Light source type
LED
Material
Aluminum
Power source
Battery
Special features
Portable

⚡5400 uW/cm² high flux density UV output

📏60+ feet long-range UV beam

🔦Triple 365nm LEDs for max UV intensity

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Description

🔦 Illuminate your edge with the purest 365nm UV beam – don’t get left in the dark!

TRIPLE LED BRILLIANCE - Three high-current LEDs deliver a combined 5400 uW/cm² UV flux density, ensuring superior excitation and results.
PURE 365 NM UV POWERHOUSE - Experience professional-grade filtered UV light that outperforms 395nm alternatives for unmatched precision.
UNRIVALED LONG RANGE REACH - Illuminate up to 60 feet with a high-intensity beam designed for commercial and professional environments.
READY TO GO WITH RECHARGEABLE POWER - Includes two 18650 Li-ion batteries and USB charger for reliable, portable use without downtime.
BUILT FOR PROFESSIONALS LOVED BY EXPERTS - Crafted from aerospace-grade aluminum with a tactical design, this flashlight is your go-to tool for demanding tasks.

The uvBeast V3 365nm Black Light UV Flashlight is a professional-grade, filtered ultraviolet tool featuring triple high-current LEDs that emit a powerful 5400 uW/cm² UV intensity at the optimal 365nm wavelength. Designed for long-range use, it projects a focused beam over 60 feet, making it ideal for commercial and professional applications. Constructed from aerospace-grade aluminum, it includes rechargeable lithium-ion batteries and a USB charger, combining durability with convenience. This flashlight sets the gold standard for high flux density UV illumination.

Specifications

ASIN	B01CV1XW5K
Additional Features	Portable
Batteries are Included	Yes
Battery Description	Lithium-Ion
Battery Life	4 Hours
Battery Type	Lithium Ion
Best Sellers Rank	#15,359 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #240 in Handheld Flashlights
Brand Name	uvBeast
Color	Metallic Black
Colour	Metallic Black
Customer Reviews	4.7 out of 5 stars 2,971 Reviews
Finish Types	Black Anodized Aerospace-grade Aluminium
Included Components	Extension barrel for optional third cell, Two-bay USB charger with mains adapter, UV Filter, x2 18650 Li-ion Recharageable Cells
Item Dimensions D x W x H	22D x 5.5W x 2.3H centimeters
Item Weight	377 Grams
Light Path Distance	60 Feet
Light Source Special Features	Filtered 365nm UV, High Intensity, Long Range, High Flux Density
Light Source Type	LED
Light Source Wattage	9 Watts
Light source type	LED
Manufacturer	uvBeast
Manufacturer Part Number	UVB-01
Manufacturer Warranty Description	1 year manufacturer.
Material	Aluminum
Material Type	Aluminum
Model Number	UVB-V3-365
Mounting Type	Handheld
Number of Batteries	3 AA batteries required. (included)
Number of Light Sources	3
Power Source	Battery Powered
Power source	Battery Powered
Recommended Uses For Product	Professional and commercial use
Runtime	1 hour and 10 minutes
Shape	Rectangular
Special features	Portable
Style Name	Tactical
UPC	784672200646
Unit Count	1.0 Count
Voltage	3.7 Volts
Warranty Type	Manufacturer
Water Resistance Level	Not Water Resistant
Wattage	9 watts
White Brightness	140 Lumens
White brightness	140 Lumens

Reviews

S**D

Nice and High Quality

all good

27.03.2024

A**I

Not the original brand (UVbeast)

It came scratched and the on/off button wasn’t working properly and stopped working after one week. Not the original UVBeast

23.11.2025

م**د

لم يعمل

لا يعمل وبه بعض الخدوش

7.03.2025

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$94.81

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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