LED illumination - 100% LED technology. Homologated LED light for road use in Europe (ECE approved). Passing beam output: 508 lumens. Driving beam output: 1007 lumens. Stable light, with no flicker during low and high rpm. Cool white light providing optimal brightness. Long-lasting LED bulb. More energy efficient than Halogen light bulbs. Universal mounting system. The Halo Headlight should be installed in bikes with DC12V only, will not work with AC voltage.