Ha, spot on, each capacitor I added made it noticeably cooler. Thanks @microcontroller, it did the job!

1- Power to ESP comes into the 5V VIN pin, and should be regulated down to 3.3 if I understand correctly. 2- GPIOs 14 & 27 (white wires) are connected to the MOSFET gate pins 3- Wiring is basically like this with an esp instead of the arduino, I can make a custom schematic after work http://adam-mey...

Hey all, hope you are well :) I've made a basic 12V LED strips dimmer using a couple of MOSFET that worked really well. Having 2 power sources for the ESP and LED seems unnecessary, so I added a cheap buck converter to step down the LED power to 5V. As far as I know the wiring is fine, I measure all...