Surprise, sur-effin-prise... The ballast had a min of 16' of light and a max of 24'; my fixture is 3x6' for a total of 18' - no problems, right? The ballast fired up one completely, one only half way and the third was barely a flicker... PLUS, the lights are purple. Ef this, I'll stick with the hodge-podge lighting I have for now.