This is a link to an eBay sale for a light
fixture for the Hunter Compact II. It is the 12 volt light
which is Bargman's reproduction of the original. It fits on the gaucho wall, and above the sink, and if equipped, on the bathroom wall.
The original light
fixtures often have deteriorated lenses. The heat from the incandescent bub eventually creates a nickel-sized hole. Also, the switch wears out over time. You could buy this one (I am not the seller) and use an LED bulb. These are hard to find and this one is priced right.