... 4.Best after-sale service Product: led drl/ daytime running light,led daytime running light,car led daytime running light,car daytime running ... lamp is more stable and long life-span.3, With high power LED chips. 1Watt/chip, Luminous efficacy is over 100lm/W ... . Parameters and other details:1, Voltage: DC9V-14V.2, Power: 6Wx2, total 12W/pair.3, Lifetime: over 30,000 hours.4, Beam ...