Sigma lighting set This set consists of an SigmaAura headlight and rear light. The lamps are easy to charge via the computer's USB port. This set gives a strong light beam with a yield of 35 lux! Headlight Specifications: Colour: black Headlight material: plastic Material holder: silicone Lighting type: LED Power supply: rechargeable Charging time: 3.5 hours Burning time: 4 hours (standard mode) Light output: 35 lux Dimensions: 90 x 30 mm (LxW) Position: steering wheel Clamp diameter: 22 - 36 mm Rear light specifications: Colour: red, black Headlight material: plastic Material holder: silicone Lighting type: LED Power supply: rechargeable Charging time: 3.5 hours Burning time: 4 hours (standard mode) Range: 400 meters Light output: 60 lux Dimensions: 30 x 40 mm (LxW) Position: seat post Clamp diameter: 22 - 36 mm Content: 1 Headlight with holder 1 Rear light with holder 1 USB cable