Read about this on the Cal Guns forum the other week and ordered one from Lite Tech Auto website. The complete kit is $40 and comes with AC power and AA battery box for folks that don't have wire hole in safe. The LED kit is 'plug and play' and is idiot proof to install. It sticks to the carpet in your safe as the back of the LED strip is velcro. Velcro strips come with the kit for folks that don't have carpet lines safes or just want extra support for the LED strips. Took 15 minutes to install.
The roller switch automatically turns lights on and on with the opening and closing of the safe door. Positioning is important, but easy to determine and a small piece of strong double sided tape comes in the kit to hold the roller switch in place. It can also be held with screws as there are two small holes in the roller switch box. Some folks have used wood a small wood block to position the switch where they needed it. I found the double sided tape an ample solution.
Very impressive product and I had it within 6 days of ordering. Passing it along in case anyone needs a nice safe light at a reasonable price. I have a 39" wide by 66" tall safe and ordered the extra 48" strip in addition to the regular kit. With shipping it was $80 total. In doing so, I have LED strips around the entire safe with a little to spare.