02-07-2011 01:49 PM #7 Fritz HID if your looking for lumens and heat is an issue, you can always look for a self ballasted, up to 60w HID bulb, (i.e. merc vapor or metal halide, the latter would be best for color). these lamps take a few mins to reach full light output, and do have a filament so light is instantaneous and will still provide light on hot re-strikes.