Yes I have a De Vere 302 as stated but it has a cold cathode head as Andrew describes. I have found that the best way to use it without power stabilisation is to leave it on for the printing session. I have had no problem with print inconsistency using this method only make sure that there are no light leaks around the head without blocking off the air vents. Problem with the cold light source is the price of replacement lamp, Odessey wanted over £200, but I have a spare and I believe the existing lamp is the original.
Hope this is of some help.