Got my two "SP105E Magic Controllers" today. Got it running a 4m strip of 60/meter pixels. (5vdc)
Pretty nice, actually. You can't program it but it will display virtually any color you want from a color wheel.
It has 200 programmed chases. Many two color or three color chases. Speed is controllable in 7 steps. Brightness in 7 steps. It has a slider, making me think it is adjustable, but it only moves in those 7 steps. It will control a single strand of 2048 pixels. You should do lots of power injection at that length.
Programmed chases use color choices of Red, Green, Blue, Yellow, Cyan, Magenta and White.
If you were going to decorate a room or ceiling with pixels, this would be about as easy as it gets. The Android App worked immediately. While it is Bluetooth, it doesn't link through my phone's Bluetooth listing. When started, it scans for available SP105E devices and will list them. So, you can have more than one. It links through a MAC address even though they all are "named" the same.
For $13.65 each, free but slow shipping from China via Ebay, can't beat the price for what it does.http://www.ebay.com/itm/231994752542