Specification and Features:
1. LED: SST-10-UV LED with 365nn wave with lifespan of 50000 hours
2. Powered by 1pcs 14500 rechargeable Li-ion battery (Don't suggest use AA battery)(Battery NOT included)
3. Two output levels with memory
4. ZWB2 black UV filter to purify the UV light
5. 2 ways for output selection. Clicky tail switch or twisty the head.
6. Size: 92*18mm . N.W.: 24g (without battery)
7. Made of Aircraft-grade aluminum alloy .
8. IP68 Rated dust-proof and waterproof. Submersible to 2 meters.

Operation:
ON/OFF: Fully press the clicky tail switch or twist the light head to turn ON/OFF.
Output selection: With the light is on, slightly press the switch or twist the light head to change outputs.

Package included: 

1 x Lumintop Tool AA UV 2.0 Ultraviolet Flashlight