ive got a handful of the 160W solarstorm 220s that are pretty good. the later series with the osram diodes (you can tell them by the pattern, more diodes, spaced closer together, in 2 rows of 4. older 'solarflare' series used crappy diodes
they are pretty handy for easily lighting up a 3x3 veg tent and, 4 of them can do a 4x4 well (and spread out better than the 400 and 800 series which had too much light packed together and necessitated high hanging.) back when i was using them for primary lighting i got better results with the 4 spread out than one 880
theyre a basic light, not dimmable (but really not neessary in that size). decent efficiency similar to a DE HPS in the 1.6 umol/J system efficiency, with better spectrum and longer life. build quality is great they have a pretty sizeable heatsink and ive never seen a fan go
i can let a few go for $175 ea if anybody needs them. i still use them to this day here and there, but i had several tents worth, so i have a bunch laying around that all have less than a year's use on them. msg me or email.