Editorial Review 4Pcs 3157 Amber 2835 LED Bulb Note: 1.LED lamp has + and - terminals, if there is no lighting after inserting it into car, just change the terminal 180 degree oppositely. 2. This item is Standard universal LED lights, without canbus function. It doesn't work on the new High-end Luxury with OBC wiring system. The onboard computer will reject them, or it will cause error, warning, or flicker ! You may need the 50w 6-ohm load resistor or flasher relay to prevent the hyper flash or the bulb does not blink due to led bulbs draw much less power than stock lamp.