Yeah I had the same question in march of last year. (You are not allowed to view links.
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Login) Pretty much the only option is the LOR CTB16PC which people say you should pick up during the Secret Sale in the spring. Supposedly not much more then the LEs.
Personally I prefer the Lynx hardware we are running 25 of them in this year's show. Some of them have been running with little to no problems for 10 years this season. I try to pick up a few every now and then but it does seem that there were far fewer this year than in years past. And while we put out almost 6000 pixels this year A/C lights will always have a place in our show since we run 11 houses currently and possibly expanding to 15 next year. So the cheapness of running an A/C controller over pixels just makes sense.
I have also thought about trying to design my own but not being an electrical engineer it is a daunting task to think about. I'll stick to programming for now.
Richard