I have a 48 inch jbj lighting fixture with legs it holds two 55 or 65 watt bulbs, i've had it for about 8 months its like new with box, i just took it off my tank to make room for some vho's it has cut out for fans i had two radio shack fans on it and it never gave me any problems, i was going to keep it as a spare but decided to sell it, the splash guard has a hair line crack but i did it the day i bought it no water gets through it, like i said it has work great for me it was on my 75 gallon it will fit a 55 gallon, i'm asking 90.00 bucks, it cost me 215.00.