I saw people here recommending the arctic-t247 lights. Went on the site but I didn't see an option there for a 48" tank. I went on ebay and saw some 48" fixtures for less than a hundy. They have 3 watt high output LEDs in them same as arctic supposedly. I'm not searching for brands right now, I'm trying to figure out how many 3watt leds I need and what to look for in a 48" fixture. I'm assuming you would use 2 T247s on a 75 gallon? That's not in my budget. $150 is around where I'm at. That's cheaper than new bulbs for my old setup.