Ive got an 8 bulb fixture. Its not dimmable though :(
Ive got all ATI bulbs in there as well O can throw in since i will not have anything to put them in, lol. Fixture and bilbs are all a little over 2 months old.
Fixture arrived with small dent in one side, but does not hinder performance
I have a geissemann 24" t-5 combo if interested . I have the original t5 bulbs and 250 watt de halide geissemann bulbs as well which are brand new. Went with ati bulbs which are currently in the unit.