Alla Lighting Super Brightest 75W 3157 3156 4757 3757 Brilliant Pure Red LED Lights Bulbs for Turn Signal Brake Tail Light Lamp Replacement (Red) (Set of 2) LED Type: 15 pieces high power & high quality Osram 5W led chips per bulb. Warranty: Fully ONE year guaranteed for manufacturer defect. Color: Brilliant Red (Brightest in the world currently(6000K Xenon white & amber yellow available, pls search Alla Lighting 3157 75W) Application: Turn signal lights,brake lights,tail lights,side marker lights,stop lights;for turn signal lights, it may require 50W 6ohm load resistor to avoid hyper flash or malfunction. Cross Reference:3156 3056 3456 4156 3155 3157 3157A 3156A 3057 3155 3157NA 3357 3457 3457A 4057 4114 4157 4157NA etc IMPORTANT Notice :Not compatible with CK sockets,our bulbs come with Standard socket, NOT CK Type, stardard bulbs installed in the CK socket will burn out or no lighting.