I have been thinking about switching my lighting over to T5's.. I have 2 - 400Watt PFO MH ballast HQI with SE Mogul, reflectors, Bulbs need to be replaced. I also have a 250Watt MH Elc. Ballast that has a 10k bulbs that has 6 months left on the bulb. If I decide on flipping my lights (which should be this weekend) $425 for all of it.