I found that having a red LED on while I developed X-ray film created fog, so I haven't used it since. Some people have mentioned turning on the red safelight after about three quarters of the development time, but I haven't bothered. I might experiment with the safelight again were I to try cutting down 8x10 X-ray film, but I would remove only a couple of sheets from the box in total darkness before I did so.
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