This is the finished installation. There is a cover that goes on last, sort of a soft round dome. There is some space between the light and the dome for ventilation. The cover can be spray painted to match your interior, or left alone in it's original white color. The light is not as focused as I had feared, but more of a wide spread. It would be easy to install 3 in a row with a double toggle, using one or all depending on the lighting needs. I installed three lights, one each in the position where the old 4-bulb lights were. The light is nice, and economical, as the little halogen bulbs only use 10W each. Not quite bright enough to read by if only one of them is on. If you put two or three together then it would be plenty bright to use for reading or playing cards, chopping onions, etc. you do not need a large hole to install these. 1/4" is big enough to feed the wires through. I might replace the under counter lights over the stove, in the bedroom and in the front of my trailer as well. This is a very easy project for those having trouble finding replacement lenses for the original lights.