WindFire Super Bright 100M Underwater 1800 Lumens Cree XM-L T6 U2 LED Scuba Diving Flashlight Underwater Waterproof Torch Submarine Light Lamp Torch 18650 Flashlight with AC Charger and 2 X WindFire 18650 Rechargeable Batteries for Diving, Camping This torch uses a CREE XM-L T6 U2 LED, the Output bright can come to above 1800 lumens. Push the button up can get strong light, push it down can get lower light and "OFF" to the end. Power by:1 x 18650 Rechargeable batteries ( included) with a Lanyard to make convenient diving. High efficient booster circuit Internal wiring can use the batteries to the largest extent. Widely used in diving, fishing, swimming, mountain climbing, camping, hiking