When customers choosing h4 headlight bulb, they are always confusing how to choose h4 headlight bulb led replacement.

Frankly speaking, h4 headlight bulb led replacement is really brighter than halogen and hid it.

But h4 headlight bulb led replacement will be flicker on startup if BMC imcompatiable with those bulbs.

So Canbus design of h4 headlight bulb led replacement shall be necessary.

As you know, my factory is producing all kinds of h4 headlight bulb led replacement, so please don’t hesitate to contact me.