SecurityIng 3 x XM-L T6 LED 1800Lm 4 Mode Bicycle Light + 8.4V 6600mAh Battery Pack + Charger Super Bright Bike Headlamp - Adopts 3 X Cree XM-L T6 LEDs, Maximum brightness comes to 1800 lumens. Internal wiring applies the high efficient booster circuit, working voltage is wide and can utilize the batteries in the largest extent. 4 Modes Available - Intelligent circuit control, single button on the back of the lamp cycles through multiple settings (full beam - middle beam - low beam - strobe mode) Long Battery Life - Comes with powerful rechargeable 8.4V 6600mAh battery pack as power source Can be used as Headlamp or Bicycle light - The bike light comes with a head strap and 2 rubber sealing ring, either handlebar mount or head strap mount is available. With elastic rubber band sealing ring, it can also working as a headlamp. Easy to install and use. Sturdy and Durable- Aluminum alloy casing, avoiding high temperature, anti fall off. Widely used in hiking, riding, camping, cycling, fishing, night walking and daily home facility maintenance