I bought a warm white light and a bright white light. They both work perfectly. I am very happy with them. I bought cheap two prong plugs and plugged them straight into the extension cord. No problem. Very bright lights. The aluminum seems to be of very good quality. The springs are strong and hold the lantern well. The diagram shows a 68mm cutout, but I used a 2" and 3/4" hole cutter. You can use any hole size from 68mm to 3 inches. The diameter of the outer metal part pictured is almost exactly 3 inches, so I would not recommend using a 3 inch or larger diameter hole. I've installed them in 3/4" lumber, but they work on any board, from very thin to 1" thick. It took less than 2 weeks to ship and I'm still surprised they are able to ship them from China and sell them at such a low price. Highly recommended.
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