Mini Tiny Signal Amplifier for 5050 3528 SMD RGB LED

originally, I thoguht I was going to have to do something like this: https://dordnung.de/raspberrypi-ledstrip/

or http://www.diychristmas2.org/vb1/archive/index.php/t-6710.html

but instead i’m getting some of these with the mosfets/transistors built in:

https://www.ebay.com/itm/5PCS-Mini-Tiny-Signal-Amplifier-for-5050-3528-SMD-RGB-LED-Light-Strip-DC-12V-12A-/142476960762?oid=161288016172

or:

http://www.hansonelectronics.com.au/product/2811dc15/

discussions here

http://falconchristmas.com/forum/index.php?topic=2415.0

http://doityourselfchristmas.com/forums/showthread.php?41875-Potential-E1-31-WiFi-mod-for-dumb-strips-amp-floods

some new board options:

existing boards, hacked