Yeah, it means they'll probably cost a lot more than something that would work just as well. ;D I think, in the situation you describe, T5s might generate too much heat. If you used one of those wire racks that folks here all love, you would be roasting the plants just above your lights. T5s are great, but if I were you I would save my money. Buy some stocks now that the market is so low. Once you have a place of your own, you can let your collection sprawl out among multiple racks and tables, and then hot lights like T5s won't present an issue.