EZDIVE LED Diving Flashlight Attach on Mask ,Spearfishing Diving Torch Waterproof 500ft/ 150m Keep your hands free.attach on mask strap through the loops, can not come off Double O-ring seal, maximum operation depth: 500 feet/ 150 meter 3400mAh 18650 Li-ion battery burn time: 2-3 Hours ,beam width : 9 degree ,Color temperature :6500K Aluminum alloy body,comes with charger and rechargeable Li-ion battery,glass lens,aluminum alloy reflector Great for night diving, cave diving,wreck diving