Review on Brilliant Red 1157 LED Bulbs for Brake and Tail Lights - 2800 Lumens, Super Bright, 2PCS - Compatible with 2057, 7528, 7507, BAY15D Sockets by Andrew Britton

I bought these to upgrade the lightbulbs in an old car. I tried installing them and found that they don't rotate when plugged into the outlet. After a little muscle, the lightbulb broke free from the lower metal half. Luckily I was able to glue them together and the lightbulb still works. Remember, you can't screw them in with the torque of a standard lightbulb. If the lightbulb doesn't spin, you must first try flipping it and then try again. If it still doesn't curl, you'll need to use a file and file down the small alignment tabs on the sides until it curls slightly. Don't forget dielectric grease when installing new bulbs!