I bought a brand new headlight unit from a Taiwanese company that lists on ebay.com (rather than .co.uk). You get the unit complete with a halogen H4 60/55w bulb, Chrome plated metal rim and a trailing connector to plug the CB550`s 3 pin plug into. The quality is superb. The only slight downside is that there is no hole for the sidelight bulb, but was not a problem to locate a bulb and holder from a local car accessory shop. I carefully drilled a hole in the reflector, which is made of mirror coated plastic, fitted a rubber grommet in the hole and pushed the new bulbholder in for a good friction fit. All in all I think it was fantastic value for $29.99 (