Raleigh 3 high performance LED's. 280 candle power output. Side visibility design for extra safety. The case is designed to prevent backwash of light which can effect the more aggressive riding style. Compact and lightweight design. Flashing and constant light modes. Quick release and easy mount bracket. Waterproof construction. 3 Ultra Bright LEDs for ultimate visibility. Light focusing lens technology. Side view lens for 180 degree visibility. Supplied with 4 x AAA Batteries. Comes with multiple rubber shims to fit most sizes of handlebar. Rubber sealed chassis for protection from moisture, dirt and debris. Quick release handlebar bracket requires no tools to fit. Durable plastic chassis. Material: Resin/plastic composite. Should be used in conjunction with a BS approved front light.