... .2, Whole aluminum housing, good heat dissipation. Make sure the lamp is more stable and long life ... polarity protection function.5, Good waterproof, IP66, be up to ECE R87 standard;6, Compact, delicate, surface ... long life-span.8. Lighting automatically, turn on while starting the engine;9. LED DRL will be ... in dark light while turn on the headlamp;10. There is warning function while ...