Greenery 1600LM Lumen GREE XML-T6 Zoomable Adjustable Luminance Flashlight Torch,with Rechargeable battery It is waterproof and shockproof It use the LUXEON 3 Watt LED bulb which lasts up to life 100000 hour The product was powered by 3pcs AAA batteries or 1pc 18650 rechargeable batteries (4000mah). Rotate the head to adjust zoon dimmer.the charger is very easy to take. Three levels of output:First push into the high light output of production,the second push into