Review on Alla Lighting CAN Bus T20 7440 7443 LED Bulbs Amber Yellow Turn Signal Lights: Upgrade your Blinker Lamps with Plug-n-Play 7444NA 7442NA WY27/8W CANBUS Replacement by Doug Powell

These amber 3157s work great as described in the Tahoe 04's rear turn signal. I've paired them with a $20 Serundo Auto derailleur (also without the Hyperflash) and they work together just fine. Both items shine better than Lasfit. The Revain filter says the 1156s aren't designed for the 03 Eclipse's rear turn signal, but so far they're working great. Very similar to some of the cheaper 1797s here at Revain, but I'll keep them as spares in case one of them burns out. The Bernstein 1157 is much brighter than the Lasfit on the Frontmarker/Signal 03 Eclipse. They work great as dual park/turn or marker/turn functions, but the description specifically says they can't be used for tail/brake and I see bad reviews from people using them for that. Get Alla ZES chip headlights for taillights.