Car door shadow light: When car is unlocked, car door shadow light lits up, increasing convenience to locate car. The light also enhances safety by brightening area up to avoid foreign obstacles.
Synchronous direction light: When signal light is activated, LED becomes yellow to synchronise with side indicator lamp, thereby increasing traffic safety while turning.
Cruise night light: When headlights are activated, white light LED activates together to increase traffic identification for safety purposes.
The turn signal, parking light, and door shadow lights are all working perfectly. I am 100% satisfied with my purchase. The quality of the items is excellent, and I highly recommend buying them.