Sdive E2 is an 1800 lumens primary dive light powered by the latest 21700 batteries. The side switch offers 3  brightness level which allows for easy operation underwater. The LED indicator light located on the switch button also lets you know the battery’s remaining charge.
Featuring
* Uses CREE LED, max 1800 lumens
* Uses 1*21700 Li-ion rechargeable battery
* 10°  focus beam angle
* Easy operation with the side switch
* Battery indicator
* Intelligent Over-Heat protection
* Water pressure resistant construction ,depth rated to 100 meters
* Reverse polarity protection, to protect from improper battery installation
* Over-discharge protection function
* Aircraft-grade high strength aluminum material
* Alloy aluminum reflector with professional optical analysis, etc.