Testing HIR lamps - What I found
I purchased Toshiba 9011- high beam lamps and Philips (3rd Gen) P9012 low beams from HERE Bases require a little modification to fit Instruction HERE My findings Low beam > OEM - HIR 25% increase in foot candle High beam > OEM - HIR 42% increase in foot candle Test Conditions 1996...
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I got the Rock Auto ones for about $6. No regrets.