These bulbs are a cheap, easy and excellent replacement for the brake bulbs used on Dodge Rams. They're specifically marketed as "spare" bulbs, but I used the first bulb to replace a burned out brake light that's installed in the cab. Installation was very easy as the Rayhoo bulb appears to have a built in diode bridge meaning polarity doesn't matter. The lamp can be installed anywhere and works like an incandescent lamp. Much brighter than an incandescent bulb and the ECU on the truck accepted the incandescent bulb as an adequate replacement and erased the error message that appeared on the dashboard. As the bulbs come in two packs I also replaced one of the bulbs in the bed in the same socket as the brake light and it gives a much brighter light. I have not used these bulbs for their intended purpose as backup lights but I am sure they will work fine. I can just go ahead and order another pair to replace the reverse lights as they give a lot more light. Big thumbs up!
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