I installed a brand new halogen bulb (with a blue tint over the high beam portion) last week and wasn't happy. I wanted an H4 (9003) that didn't have a large fan dangling from the back. At $50/pair, they're no more expensive than the best halogens. I am totally amazed by the brightness and consistency of the pattern. I just did an AB comparison between the two on my Triumph Tiger bike. These LED bulbs are whiter and brighter. The difference is obvious. I'm also amazed that the bulb seems to run cooler. I put my hand on the plastic lens in front of everyone, the halogen bulb heats up but the LED doesn't! I don't mind the heat. I can't say anything about the durability yet, otherwise I'm in the top 5.
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