Review on GRV Ba15s 1156 1141 LED Bulb 4W 56-2835SMD Super Bright AC/DC12V-24V 40W Halogen Replacement for Interior Lights in RV Trailer Camper Motorhome - Warm White (Pack of 2) by Ben Alvarez

You will love these - they work great - I fitted them to my camper van. I have two outdoor lights on the porch by the MH door and they always go out. I was wondering if they are bright enough to replace incandescent bulbs which were very bright. Well the answer is yes, and while they're not that bright, they're bright enough - a brightness scale, say, the original 12 volt car light bulb is 5, then it's a good 4. I have them in other internal sockets Tried them out and they work just as well. They look pretty ugly in a pair of rotating reading lamps, but I've replaced these lamps with a different style. These LEDs can be around 1/4 inch longer than the originals round glass bulbs, length and ugliness aside this is a super easy replacement for any 12v car.