I want to relamp my T5 HO fixtures, and have been wondering if there is any benefit to go with grow light tubes, instead of regular 6500k T5 tubes. Will there be any added benefit with the more expensive bulbs over the cheaper ones? There is a store in town that is closing down and have enough sunblaster lamps to do one of my fixtures on sale. I would have to buy the other lamps at full cost, so it could be a bit pricey, but I will do it if there is enough benefit.