I have to DealExtreme (China) 2 LED dimmers purchased. They are completely stripped so that I just the printed circuit board and the potentiometer.

That will be later in the sidewalls under the Map/Chart Light panel mounted for controlling the Map Lights (next to the FWD OVH) and the ‘Grimes-Lights (in the middle of the sidewalls).

The actual "Chart Light" above the side windows have with me a built-in on/off switch without dimmer.

It is not the first time that I've bought at DealExtreme. DealExtreme is cheap and the shipping is free.