I replaced backup lights on a 15 year old GMC Sierra Denali and now I'm spoiled. Recently bought a 19 Civic as a daily driver and immediately had to do the same with it. I think I used Philips LEDs on my GMC and I also think it was a bigger bulb (because of the bigger body) so they're not as bright but still a big difference from the stock bulbs. The light is of course true white, not the yellowish light that an incandescent bulb gives off. I wouldn't say they are twice as bright as regular ones, but probably around 50%. Also, the light quality is better and it looks cleaner if you take care of those things.
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