If you need more brightness you can take the original housing off. I usually strip mine. I can then drill a hole under the sign and mount the switch so it can be easily turned on and off. Here is a pic.
Thanks for sharing- yes mine's been on non-stop since I installed it, and I was thinking about a way to set it up so the light wouldn't be on all of the time. But right now, I'm just happy to have the light working! That's one thing off the list!