You could use a Nova by feel alone but as the paper sinks into a deep slot then a dim safelight like the Kodak colour safelight will be very safe and give just about enough light to see to use a Nova.
Originally Posted by Chan Tran
On the other hand a DUKA or Thompson sodium safelight could be used at quite a high illumination as nearly all of the time the paper sits too deep in the slot for light to penetrate. Unlike trays light can't shine into the slots.
A good investment for B&W as well for the reasons already mentioned