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 all from a super compact super light usb rechargeable waterproof integrated silicone package output front 250 lumens rear 70 lumens dimensions front 53 x 30 x 63mm rear 27x 76x 52 weight front 75g rear 52g light modes front total of 8 light modes narrow high dual beam amp fla