H4H LED Bulb Adapter

Do you own a set of JDM golden era Honda head lamps that use those damned proprietary H4H type bulbs? You know, the bulbs with the stupid smaller footprint mounting flange? The bulbs that no where else in the world are used except in Asian territories? The ones that always cost just a little too much than typical H4 bulbs and are slightly harder to get? Yea THOSE. — well, we gotta solution for you bub!

Thanks to semi-recent affordable aftermarket LED lighting solutions available on Amazon and eBay,  some of these kits offer removeable bulb base adapters.  We took notice how some the offered Honda kits — specifically H4/9005)/HB2 — do not have an H4H base adapter option. So we decided to make our own 3D printed H4H base adapter!

Now, we don’t supply the actual LED bulb kits (yet) only the adapters.

3D printed H4H adapters are temporary for now – we may offer a CNC metal version adapters later on based on demand.

We’ve tested a number of Amazon sold LED brands that are compatible with our adapters. Our top favorite brand is by Fahren and their H4/9003 bulb kit with removeable bulb base. They do offer an H4 kit with a non-removeable bulb base which is the version you DONT WANT.

Here’s a list of the brands we’ve tested with success:

Fahren Terminator LED Kit H4/9003 (Amazon) 

Fahren Forscher LED Kit H4/9003 (Fahren direct)

Fahren Forscher LED Kit H4/9003 (Ebay)

(coming soon) Visit H4H base adapter product support page for further technical insight