Product Description H4 Dual Beam With a magnetic control unit inside, making the bulb tube moves in and out to create conversion of low beam and high beam Features: 1) With UV cut glass for headlight protection 2) Waterproof and vibration resistant 3) 12V / 24V, 35W available 4) Lifetime: above 3,200h 5) Luminous flux: 3,200LM, nearly 3 times more than halogen lamps 6) Base types: H1, H3, H4, H4 hi / low, H7, H11, 9004 (HB1), 9005 (HB3), 9006 (HB4), 9007 (HB5), D2S and D2R 7) Significantly lower power consumption and high light efficiency