LED Headlight for Velomobile

This instructable will show you how to construct a LED based headlight for a Velomobile.

I replaced the standard headlight on my home made 'Alleweder' Velomobile with two Luxeon power leds with two different lenses, one for a small bundel for long distance illumination, the other with a broader bundle for close distance.

here is an image of the parts you need

mark position of LEDs and lenses on the heatsink and drill the holes.

After drilling the holes, first apply some heath conductive compound.
Then screw the LEDs on the heatsink, and solder them together in series.

Now you can solder the PCB with the buckpuck LED driver according to the diagram.

First fix the lenses, glue them to the case using a glue gun and put the PCB into the case. Some isolation foam is used to keep the electronics from the case.

The headlight is mounted into the velomobile. It get is power from a battery and is switched using a switch on the dashboard. details about the construction of the velomobile can be found here.