WindFire Cree XM-L T6 LED 1800 Lumens Scuba Diving Flashlight Underwater Waterproof Torch Submarine Light Lamp Torch 18650 Flashlight This torch uses a CREE XM-L T6 LED, producing very bright beam of light. Output bright can come to above 1800 lumens. Most important, the flashlight is a diving flashlight. Waterproof up to 60 meters submerged, specially designed for diving. Power by:1 x 18650 Rechargeable batteries (not included) with a neck rope to make convenient diving. Internal wiring adopts the high efficient booster circuit, and can use the batteries to the largest extent. Hard anodized finish,Anti-abrasive, free-scratch, shock-proof. Ultra-deep trench structure with skid-proof effect is excellent when diving.