Some time ago the motor from the drill had died. So I replaced it with the Proxxon that I bought for my cnc machine.
A few weeks later the leds underneath died. I had some 3W leds + drivers in stock, so I decided to build a led driver and put a 3W led under the PCB.
Circuit drawing & PCB:
(External variable resistor = 100K)
Fixed to the board:
PDF files LED driver pcb: Download