Thanks, Pcyco! Now let's see if I can find one of these...
Is it a E27 screw-in or does have some other configuration? I can never remember if the safelight for orthocromatic papers should be above or below 610 nm? If below, could a green LED with a spectrum of 510-540 nm work?
But I guess dark green is even darker than red, right?

Adv Reply