Beware, they are MUCH larger than a standard lightbulb and may not fit. 2.67OD x 4.87OD. The standard replacement bulb had an outside diameter of 2.37 x 4.19 OAL. For me the problem was the length. (0.68 inch longer) I really wanted to try these for my car's working headlights because of the low temperature and bright light, but to install them I had to disassemble the headlight just to insert or remove the bulb. Hopefully they will last many years and it won't be a big problem. If they don't last, I'll edit them and change them to a star. But now that they're indoors, I like the bright white light and cool temperature. You no longer have to burn yourself by hitting the metal edge of the street lamp cover with your hand. (the heat protection of the plastic hood is not so reliable)
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