Herb, I have one of these on our Suburban and I can highly recommend it. With the dark tinted windows of these vehicles, this accessory makes a world of difference backing up at night. Very bright and ample light compared to the vehicle's standard backup lights. We have three kids that play hockey, so this is vital in a dark, crowded parking lot with lots of pedestrians. Construction-wise, it is a hefty, quality-made piece. No fogging or problems with mine. I leave it always installed and set so it comes on when shifting into reverse, but it can also serve as a flood light whenever your parking lights are on.
MotoTrix LightBuster
I bought it at my local Northern Tool & Equipment for $30. I think they have a store in Duluth? Not much risk, since you could return it if you don't like it, but I doubt that would happen. It's definitely worth it, IMO.
Cheers,
Dave