I had to route my bulbs with a dremel as the heatsink is slightly larger than the standard H3 bulb. This light does not illuminate anything straight ahead due to the top and bottom emitters, which does not duplicate the light pattern of a standard halogen bulb. They are as bright to the naked eye as a 55w halogen bulb, only much whiter. I installed them on my Harley style motorcycle lightbar. From the driver's seat, I immediately noticed that I no longer had any light to the front, but only up and down due to the arrangement of the radiators on the radiator. The good news is that the trade-off is that oncoming vehicles no longer flash their high beams like my old 55w halogen bulbs did. That's both a good thing and a bad thing as I now have to rely on my headlight for anything in the range of about 25 feet. before me.
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