cciyu 4x 7440NA 7443 7444NA 7505 992 W21W T20 60-Epistar-Dual Chip-SMD White Amber Switchback Dual Colour 60 LED High Power Brightness Car Parking DRL Front/Rear Turn Signal Lights In-built high quality internal IC chip electronic components. The model is as the same as original light, no need to change car wire rote, just replace it directly,If the LED does not light up, simply flip it 180 degrees (reverse the polarity). High performance Epistar LED, long lifespan, superior illumination stability. one SMD chip have Dual Chip Modules and can shine Dual colour ,Dual light source. How it Works: White light on when Parking DRL on ;"Amber-Off-Amber-Off" when Turn Signal on ; White light on when Parking DRL back on.