A red light will work just fine, but it will be a whole lot harder to
see what you're doing with a #1 or #2 safelight filter, compared with
What I would most recommend would be one of the sodium lights sold for
B&W printing work. They are so bright you could read a book comfortably
and will not fog blue-sensitive materials.
A red LED array is okay too, but again harder to see by than a yellow
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