3800lm Cree Xm-l T6 Zoomable 18650/26650 Led Flashlight Torch Lamp Waterproof Bulb: CREE XM-L T6 LED with a lifespan of up to 100,000 hours. Color Emitted: White. Material: High quality 6061T Aluminum Alloy. Durable aircraft-grade aluminum makes this flashlight sturdy and durable. Waterproof. Don't drop it into water for long time since it is not designed for diving. Internal wiring applies the high efficient booster circuit.