Here is a repost that I had to rebuild from 2016. This is from a motorcycle forum about by 1986 Honda VFR700F2. It uses an H4 bulb and has a fluted glass front reflector.

Part 1:

Hello all, I just finished a headlight bulb upgrade using the latest 7th generation Philips Luxeon Lumiled ZES fanless H4 bulb. These are really great as they don’t use a fan, are very bright and maintain the correct beam pattern of the stock H4 bulb. They also turn on instantly with no warm up and flashing the high beams are instant. I bought a pair for about $66 USD. It would be nice to buy a single, but nobody sells them that way.

It uses 4 tiny led chips per side for low and the same for high. So that’s 8 total for low beam and 8 for high beam. They are 5w each so 40 watt total. When high is activated, low turns off, so it’s never more than 40 watts. These are positioned to duplicate the size, shape and location of the H4 filament. You can also see the shields on the low beam section. The base is also adjustable so you can rotate the bulb to get the best cutoff pattern.

They use a tiny little voltage regulator to work with 12 and 24 volt systems.