Response to Sodium Vapor Darkroom Lights

I have to second Gene's findings....in college we had Thomas' hanging in classroom-sized (roughly 20'x30') darkrooms and we had to make sure we had the doors at the lowest setting...even then most students strayed to the far side of the room to print. I've found that the delta safelight bulb for a standard socket is a very fine and very safe source for my small darkroom (10'x12'). I've installed it in a old SV flood with stand and bounce it off the ceiling when the paper is out of the safe then point it down for inspecting tests. It passed the twenty minute safelight test with flying colors. Nice, cheap alternative for folks without Bedwell's kind of cash.

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