Nitecore GEM10UV Gem Identification Flashlight with Ultraviolet Led,Black

• Powerful ultraviolet output
• Ideal tool for amber and diamond identification
• Exact brightness you desire without a fuss using the easily and infinitely adjustable rotary dial on the side of the light
• Compact design and easy to use rotary switch make the light easy to operate with one hand, even wearing gloves
• Ruler for measurements

Don't catch the FLU from a guest of the night before, if you travel a lot, UV lights are an invaluable tool for checking if hotels are changing sheets, pillow cases and other bedding. Use UV light to check bathrooms and sinks for cleanliness. Almost any visible or invisible biological stain will glow under the powerful ultraviolet black-light. Rotate the dial to adjust your beam brightness, from 0. 5 to 1000 lumens to strobe. Precise and simple to use. Powered by a single 18650 battery, the GEM10UV is capable of a max run time of up to 4h15min on Turbo. The flashlight can also be powered by two CR123A batteries, giving you multiple power options for extended use operations.