Some of you will have read this before, so apologies.
My lathe came in 2003, with a 24 V 50V Halogen light on a gooseneck, attached. Good light, but had an appetite for bulbs. It runs very hot, but removed the "glass" and filed a couple of 8 mm wide slots in the rim of the reflector, to improve ventilation, before reassembly. Can't remember when I last changed a bulb.
Just as well, since no around here seems to stock 24V 50W QH!
HTH
Howard