i live in san bernardino
its a ballast / light combo that all hangs above the tank. the fiture is 21 in long(16 is light rest is ballast) 6 in high 10.5 in wide - if you want to use with a hood it will not fit since mh should be around 8 inchs off your water. (unless you use a tall canopy 8 + 6 =14)
with the 175 10,000 i was able to keep everything from low light to sps
you can get a picture of it from hamilton web site
i would much rather trade than sell also looking to upgrade tank now in 25g looking for bigger pre dilled tank w cash