WindFire Cree XM-L T6 L2 Super Bright 100M Underwater 1800 Lumens LED Scuba Diving Flashlight Waterproof Torch Submarine Light Lamp Torch with AC Charger and 2 X WindFire 18650 Rechargeable Batteries This torch uses a CREE XM-L T6 L2 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