I have just fitted the Lucas 564 reproduction tail light, such as this one from NewBonneville,
and have been planning for a while to convert it to LED when I got one. My original plans were to build a board containing Piranha Superflux LEDS which would replace the original 27/8w incandescent filament bulb. However, before I could put my plans into action I stumbled upon this LED board from Matchless Clueless...
The cost of the board compared to building one myself isn't much so I went down the lazy route and bought one. I was feeling a little sceptical at the time, since the board uses only 4 LEDS for the tail light and 6 LEDS for the brake light, a total of 10 LEDs. My plans had been to use at least 20.
I have to say though, that on fitting the board I was amazed. Those 4 LEDs completely outshine the original filament bulb and there is a large enough difference between light output of tail to brake lights as to be highly noticeable since all 10 LEDs light when the brake comes on.
Fitting the board is easy and only takes around half an hour. Two small (3mm) holes need to be drilled in the light unit base plate to take the board fixings. The guy who makes these boards is James Smith and apart from being a member of the Matcless forum owns his own site, http://www.matchlessclueless.com
and he is based in Hong Kong. I have emailed James to suggest an alternative method of fitting the board that does away with the need to drill any holes and he says he will look into it for future batches.
Electrical connections are easy too. By default the light board comes with a 3 wire connector which plugs onto the back side of the board and the internals of the bulb holder are removed so that the 3 wires can run through the holder and connect via bullet connectors to the rear harness. This is the way I did mine, but James also offers an alternative method where the bulb holder internals are kept, and an adapter consisting of a BAY15D bulb base is just plugged in in place of the bulb, so there is really no wiring mods needed at all. Its completely plug and play.
All fittings are supplied as a kit and there is also a printable template for drilling the holes. The kit arrived extremely quickly, within a couple of days of ordering and was well packaged. For anyone who is considering converting their Lucas tail light to LED I would highly recommend this board. You will not be dissapointed with its performance. Here is a link to the page for the LED board: