Description:This listing is for 2pcs 10SMD 5630 LED high power H21W BAY9s indicator reverse side light lamps6000K xenon white light colorApplication: Side Light, Indicator Parking Driving Light, Reverse Light, Daytime Running Light DRLEasy installation, no wiring or modification, just plug and playVoltage: 12V DCEasy Plug & Play installation; Quick instant Start-Up timeThis LED Light works properly on 90%+ latest/European cars with OBC CAN Bus wiring system (shows Error meage); if it shows error meage, you may need to buy a Load Resistor installed in the circuitBulb size in length: 37mm from end to end; 12mm in width with 9.2mm OEM standard socketPower: 4W high power each lamp; Lumens: 320LMSocket: 435 H21W BAY9sSince the size of this BAY9s, 64136, H21W LED light bulb is slightly different with the stock/OEM bulb, so buyers must make sure this LED bulb is your vehicle's correct bulb type and can fit into the light housing of your vehicle before buyingPlease try to reverse the polarity of the LED light if you found that the LED light is not working properly after installationCro Reference for this LED bayonet bulb:435 H21W BAY9s 433D 6021 68191 64136 12356 2-B miniature bayonetPackage included:2x H21W BAY9s 10 SMD 5630 LED indicator reverse sidelight light bulbs xenon white