Because led is brighter than h7 halogen bulb, some of people like to change it.

But h7 halogen bulb to led for some cars is not a good choose.

For example, most of h7 led bulb is small electric currents, so BCM of some cars are imcompatible with them.

It makes some cars hyperflash or flickering after install h7 led bulbs.

Meanwhile, h7 halogen bulb has a stronger penetrating performance than h7 led bulb.

So h7 halogen bulb is better during bad weathers.

But h7 led bulbs are really much energy saving, brighter and longer life time.

Of above all, h7 halogen bulb to led is base on different situations.