An off the shelf H4 LED headlight bulb is pretty easy to find on ebay. It will fit any H4 reflector shell you can get to fit your ring kit. The ring kit is the hard to find bit. so send back the ill fitting reflector & get a metal backed one that is a better fit, THEN BUY THE LED H4 Bulb they are very cheap on Ebay. I just built up one for my Ural, from Ebay parts, & got off under $40.
See photo: Headlight in day light, + 2 LED Spotlights.