Using powerful LIPO batteries, Blinder Road can produce impressive light output without the need for traditional heavy duty batteries. The body of the light is aluminum, uniquely anodized so it doubles as a heat sink. The design used is stylish and versatile enough to fit on most high-end cycling cockpits.Blinder Road is 100% waterproof with IP68 protection. The light is charged via integrated USB, meaning no additional cables are needed to charge from the USB port. A durable silicone strap combined with a polycarbonate clip allows the model to adapt to the many different configurations required of today's road cyclists, many of whom have GPS systems on their bikes. The Blinder Road uses 2 LED chips. The left optic has a 12 degree beam for spot light - fast riding on straight roads etc. While the right optic has a 32-degree beam for wide illumination - slower riding on bumpy or rough roads. Each LED chip has different flashing modes and operates independently of the others.The intuitive user interface allows the user to safely and easily switch between illumination, flashing, wide and spot light modes.Weight: 70 g Battery Life - Blinder Road 400(High Brightness/Low Brightness) Narrow: 1.5 / 2 hrs Wide: 1.2 / 2 hrs Dual: 1 / 2.5 hrs Flashing: 3 / 8 hrs