Originally posted by srpage:
Their conclusion:
"Our tests showed that while they do yield whiter-looking light, premium aftermarket halogen bulbs don’t offer a consistent performance advantage over original equipment bulbs, and they can perform worse. Much of a headlight’s distribution of light is dictated by its reflector and lens, factors that remain unaffected by changing the bulb. And the combination of higher cost and some manufacturer specifications of a shorter life span than standard replacement bulbs add up to increased costs."
Good info - thanks for posting.
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