I use a very old 8x10 "Cabin" branded "Light Panel". It was originally used for viewing negatives. Probably uses a fluorescent bulb - when it was made they didn't have LED tech yet - but it has a very white, even light. I'm sure any current LED light pad will be fine as long as it's putting out an even, white light. Some people even use an iPad.
A little tip on the DigitaLiza - I have the 35mm and 120 versions, and sometimes I have a tough time getting the film to lay flat and stay put if edges are curled more than normal. I have found that it makes a big difference if you don't cut the film, but slide it through as one long filmstrip. That way any curl is flattened out by the end slots. Plus, as you're scanning, you can easily slide the film through the 'Liza without opening and re-positioning for every set of frames.