It depends how tricky you want to get with your lighting. Some lights have a standlight feature that will keep the light burning for a while if the generator stops putting out juice. But they're more expensive than just a simple bulb in a socket.

If I were going to the expense of a generator hub, I'd get a good light, too. Maybe something with a big Cree LED emitter and a small battery. The folks at the lighting forum topic could help you much more.