I use an encapsulite safelight. It gives good, even light. It's important it's not closer than 1.5 metres from sensitive material - you can get different sizes & sorts depending on your room size and what you want to use it for, and you can swap the tubes over. Quite expensive, but seem to last (as long as you don't drop them if you change them!)...
It's always a good idea to test for fogging before you start, but important to test the room in darkness first as fogging is often down to light leaks.