No delay to light up, Faster on/off response timeLifespan: 80,000 working hours, stable quality, long service lifeAluminum heat sink design, built-in automotive circuit to prevent electronic interference.The model is the same as the factory light, no need to change car wire rute, just Plug and Play, NO modification requiredEnergy saving, environmental protection, Stable performance, through strict test, Use safer driving in the carSuper Bright A pair (2 bulbs) H4 / 9003 / HB2 80W/bulb ,4000LM/bulb 6000K LED Bulbs Headlight Conversion Kit High and Low Beam / Fog LightFEATURES:Bulb Size: H4 / 9003 / HB2Application: Headlight High and Low Beam / Fog LightLED replacement bulbs are engineered for superior performance, exceptional looks, and increased safety.LED chip high power 40W per bulbColor Temperature: 6000K Clear WhiteLumen: 14000 lumens per bulb, no blind zoneWorking Voltage: DC 12V to 24VColor:SilverMaterial:Aluminum alloize:Single size about: 7 x 5cmPackage Contents:2 x LED Bulbs H4 / 9003 / HB2 Super Bright WhiteOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.