My daycare is in the basement with entry from the garage. I have a washroom and naproom as well downstairs. I keep the basement bright by installing pot lights with "outdoor" yellow light bulbs. They make a huge difference and run at about 9 watts instead of 60 watts. I have 9 lights so thats 81 watts instead of 540. Anyway, the kids eat and craft upstairs off my kitchen so the parents know it is not basement only for their kids.