Inside lighting for a pop up has come a long way from the standard 12V dome light bulbs that got hot enough to burn a hole in your canvas if you closed up with it on. LEDs have become popular, especially for anyone who boondocks.
We got rid of the first dome light above the table and opted for a florescent fixture. It was nice, at first. The bulbs started to flicker after a few months, then continued to get dimmer and dimmer. After replacing the bulbs it worked fine again for several months, then start the same sequence, only faster. When the second set of bulbs began to die, I went back to a standard fixture with 2 bulbs. The difference with this unit is the lens, it disperses the light and is bright with just one bulb turned on.
The plug on this light is for 12V DC, we use it for a bunk light