halogen vs led headlights bike in China

I would like to try to explain halogen vs led headlight bike in brief.

Most of old bikes were using halogen headlights.

But now, some halogen bulbs bike are substitued by led headlights.

Because led headlights bike is really brighter and longer life time.

For example, led headlights bike are about 30000 hours, but halogen is about 300 hours.

At the same time, led headlights bike is brighter than halogen.

If you want to get more details about halogen vs led headlights bike, please inform me without any delay.