The 1600 Lumen USB Rechargeable LED Flashlight features an intense beam of light that projects an output of 365 meters. Constructed of durable aircraft grade anodized aluminum this light can withstand a 1 meter drop test. Other features include recharge-ability via USB an optimized reflector system that allows for maximum light output 3 switch settings â?? High Low and a memory forward switch. When you turn the light off it will automatically come on in the next switch sequence from previous use. To obtain the setting you require lightly push the switch to advance through to the light mode you require.