As an add-on to this thread, though a tad off-topic (apologies!!):
The resale we bought had a couple of solar tubes already installed - one was in the kitchen. The prior owners had the kitchen tube installed to take the place of a ceiling light that was there. They had a light bulb integrated into the solar tube that would be controlled by the wall switch that was already in place for the removed ceiling light. Gives the benefit of having both the solar tube for daytime light as well as a traditional 'switched' light bulb for other times. One less "thing" on your ceiling!
Bill
