Hello everyone, This video is on power control methods, namely SSVRs and PIDs. How they work internally, and then a bit at the end on why you would want one over the other. Here is the link to the SSVR I use, and showed in the video. Mine is the 220V 150A closed loop negative feedback version. Finglai SSVR: https://www.finglai.com/products/relays/solid-state-relays/single-phase-AC-solid-state-voltage-regulator/ Closed loop just means it has internal circuitry that measures the output to make sure it's always providing the same power, even under load when the voltage can drop if the load is really high. Have a great week! p.s. Again, if you see that I said something in error, or wrong, please feel free to correct me in the comments.