My darkroom is 10ft by 10ft by 7ft and is lit by 3 large spotlights. The biggest problem is that they put out a lot of heat and also the quality of light is not that good.
I intend to replace them with 6ft 70 watt fluorescent tubes in a twin light fitting. I was going to opt for daylight tubes with a colour temperature of 6500K. A prismatic diffuser will help bounce the light around a bit. Hopefully they will run a bit cooler as well.
My main concern is afterglow. My electrician says that tubes have improved over the years and afterglow is no longer a problem.
Is there anyone out there who has fluorescent tubes fitted in their darkroom and did you have any issues with them?