I've always used a disc of white opal perspex for flats on my FSQ, with a section of cardboard packing tube to hold it in place. I use this to get flats at dusk, but thought I could do better with a light box, so got an LED strip to play with off ebay. 5 Metre, 300 LEDs for £2.99 delivered from China. Is it me, how can anybody compete with that in Europe! Anyway, glued sections of the strip to the salvaged plastic end of the packing tube, driven by a PWM circuit... Lin