There are options out there, but it all depends on what you are looking for. I think Maxspect and Radions have everyone's attention but there are some others trying to run up behind them. I saw the Radions for the first time at MACI. You probably are aware that I am looking for a replacement to my Mazarra modules. I saw them at MACI and I did not like them. They wouldn't work for my applications and I would have to have them setup pretty high above my tank for proper coverage. I've decided to just stick with the Mazarras because they provide more coverage than the two pucks in those Radions. I had to face the fact that though I have had some issues with these lights, they are the best for me out of everything that is currently available. I'm not interested in building my own fixture.