WindFire Cree XM-L T6 LED 1800LM Scuba Diving Flashlight Underwater Diving High light Lamp 18650 Waterproof Torch Submarine Light with Charger and 2X WindFire 18650 Rechargeable Batteries for Swimming This torch uses a CREE XM-L T6 LED producing very bright Output bright can come to above 1800 lumens. a great diving flashlight. Waterproof up to 30 meters submerged, specially designed for diving. Power by:1 x 18650 Rechargeable batteries (not included) with wristband to make a convenient diving. Internal wiring high efficient booster circuit can use the batteries to the largest extent. Hard anodized finish Ultra-deep trench structure with skid-proof effect is excellent when diving.