4 x 1157 bay15d p21/5w 5050 smd 27 led auto car brake tail slight lamp bulb dc 12v day time running light headlight lamps

led type: 5050 3 chips smd, each led has 27 smd in total. long lasting, up to 50k+ hours life time easy plug & play installation; quick instant start-up time please try to reverse the polarity of the led light if you found that the led light is not working properly after installation