Knog blinder road 250 light setthe blinder road twin packs are hi powered bike lights specifically designed for road cycling delivering a colossal 250 lumen beam of light at the front and 70 lumens at the rear theyre the first blinder lights of their kind to give riders 100 visibility and freedom at night the knog blinder road 250 is a super compact super light usb rechargeable waterproof integrated silicone package featuresmaterials polycarbonate housing and pmma lens hard anodised