I installed a slide switch dimmer in a plastic box on the top left back corner, making a hole to access the dimmer switch. I found a large plastic cap to use as a base for a ceramic socket and installed it on the left side of the cabinet. I made the proper connections between the dimmer and the bulb socket and finished them with the use of a recycled appliance cord. I insulated the inside of the cabinet with garage door insulation and double-sided tape. A 75w incandescent light bulb took care of the heating. I placed a $7.00 digital thermometer on top of the cabinet with the outside sensor inside the box. As much as possible, I sealed any joints through which heat could escape with clear and /or electrical tape. I placed the sensor away from the bulb and moved it around until I was satisfied with the average inside temperature reading.
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