LED Car Searchlight
In the year 2003 the hype about "high power" LEDs begun. I bought a lot of them, without any idea what to do with them.
Now I've found one project to use 6 5W LEDs.
Sometimes I need light when I'm around with my car. So I created a searchlight for the standard 12V plug in the car.
Milling of the Housing
At first I've milled a housing for the LEDs. The fins are not calculated, I just did it that it look nice.
Turning of the Housing and Caulking
After the Milling I've turned out the pocket for the LEDs. Furthermore I've caulked the housing against Water. The o-ring is from a KTM motorbike it was the only suitable to buy as a private person.
Make a Handle
For the handle I've used a old billiard cue. I've only cut it to the right length.
Electrical Stuff
As already mentioned, I've used 6 5W LEDs with either a 30° or 15° beam angle. The power supply is a DC/DC converter for laptop computers. The output is rated to 12V. It isn't specialized for the usage with LEDs but I trust in the thermal mass of the housing.