H4 bulbs do not pull more power as long as you stay with state law wattage 50/55 I believe. Hella and CIBIE are great but expensive. Sylvania SilverStars are a vast improvement over stock and require no seperate bulb.

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81 300CD (sold) 1972 280 SEL 4.5 (sold) 1966 250 S 4 spd (sold) 1974 450 SL (sold) 86 BMW 325ES (sold), 1973 280C (sold) 1988 300 SE.