Bulbeats 2pcs 33-BK Chipsets 900LM 3056 3156 3057 3157 4157 LED Bulbs Backup light reverse light Brake light tail light Xenon White 6000K 2pcs/sets of BK-33chipsets-2835 high power 3157 LED bulbs. Color:6000K Xenon White.Size: 1.70" long and 0.88" in diameter. Fits: 3156 3056 3356 3456 4156 3047 3157 3157A 3057 3155 3157NA 3357 3457 3457A 4057 4114 4157 etc. Used for backup recerse light , turn signal lights,brake&tail lights etc. Lighting output: about 900 lumens for each bulb. 33pcs BK-chipsets, each chipset around 27~30LM. **Please check your car Socket before purchasing**! **Please make sure the measurement before purchasing**! THIS IS NOT FOR Standard CK SOCKET!Contact us if there is any questions! 1year Warranty. All LED bulbs have to be plugged in a certain way,it has Positive and negative, so if they don't work at first, quickly take them out, turn them around 180 degree, and put them back in again.