P.S. Regarding the original question - If these are the same portable closets I looked at before buying my hut, they're not even close to light proof. The walls aren't completely opaque and light comes through the actual fabric. But you might have been looking at a different model.
Help_Needed Reviewed by Help_Needed on . Hydrohut alternative Just a thought for those thinking about buying a Hydrohut: In Home Depot the other day I saw a portable closet. It was white on the inside and $20. I don't think it's completely light proof though. Rating: 5