For those needing larger illuminated surfaces Gepe has professional illuminators. Brushed Aluminum frames, only 1.5" (3.8cm) thick, that use 5000°K ±270°K, 13W, 3.000 hour CCFL tubes. They are available with a 8x18" (20x45cm) illuminated area. Both units feature a front mounted on/off switch and they come with an AC-adapter.
It has provision for wall mounting and an angle arm to use them at an inclined angle.
It has film clamping strips on the top and bottom edges and are calibrated in both inches on one end and centimeters on the other.
The acrylic panel is easily removed with 2 large screws for tube changes.