JD
Well-Known Member
Mercury vapor had an almost sick color. A very thin blue spectrum with a few other spikes that filled it out a bit. If you have some R40 strips, then they most likely have medium Edison bases in them. You could pick up one of those super-cheap CFL contractor packs (12 bulbs or so, ~$1 each) at home depot and just switch out the R40 lamps. You would have to park the dimmers at 100% as the cheap CFL's don't like dimmers. Add some additional color boost daylight filters and you should pretty much have what the old MV lamps put out. Just make sure the CFLs are what they call "daylight" (which of course looks nothing like daylight!)