I recently built this 50VA 12V/AC power supply with two switchable channels for lighting. It uses a ring transformer, I added a temperature fuse and short-circuit current limiting resistors (0R82). Below the D1 board is a 7805 voltage regulator, since the D1 board only accepts 5V nominally. The ESP8266 D1 board runs Tasmota.
I used some left over spray RAL 3003 paint from the Karl Klein DNG 6-22,5 paint repair for the front and back panels on this one. I think it looks cool.
