Package included :2X 3156 High Power CREE LED auto bulbs=1 pair Features: -6200K Xenon White-Max operating wattage: 30W-Lighting output: approx 850 lum-Equips with high power FLUX LED emitter plus 3x optical projector to maximize the lighting output-3 pieces 5W CREE XBD chips on top with 3x Optical Lens for spot light-3 pieces 5W CREE XBD chips on each side for flood light-Voltage: 12-24V DC-Lifespan: 20000 working hours-Housing material:Aviation aluminum-Heat dissipation:wide area of red copper， aviation aluminum for fast heat Fitment:-This LED bulb will replace single filament use for 3156 3056 3157 3057 3457 7443R stock bulb For Turn Signal，Backup Lights Lamps， DRL Lights-In order to make sure these bulbs will fit or work， please double check Osram Bulbs Guided for a reference guide.-This item fits on the following sockets: 3156 3056 3157 3057 3457- Note: Since the LED bulbs have lower wattage vs the stock filament bulbs， therefore when installing on some newer European cars， you might need to tap on load resistor to get rid of the error code on dashboard or flickering.