I am not sure what socket you guys have for your revers lights, but I have the 3157/3156 and these are the bulbs I recently got and have been very happier with them.





They have a 7w Q5 Cree LED with projector at the end and 12 5050 SMD LEDs rapping around it. It is like having headlights in the rear! they make them in a few different configurations and bulb types. I got mine off eBay but you can find them other places.