Can't say for certain that BLB spirals are the same hardware, just with different phosophor/filter coating, but I have compact fluorescent bulbs in my kitchen fixture (got tired of changing the tungsten bulbs every 3-4 weeks). That fixture mounts the lamps horizontally, and though they do work well enough in that orientation, they're very dim when they first start; I have no way to be sure if that's due to orientation or temperature, however.Quote:
Originally Posted by sanking
Given that VDB is working with a single spiral BLB in a reflector, I'll have to get another reflector (beyond the one that holds my 1950s vintage safelight bulb) and order in a BLB CFL. Then I can start working on cyanotypes and such without being dependent on sunshine (or working in the day, for that matter).