Input supply voltage fluctuations of the general permit for the 4.5 VDC-420VDC (4.5VDC-9VDC, 9VDC-18VDC, 18VDC-36VDC, 6VDC-40VDC, 36VDC-72VDC, 70VDC-150VDC, 200VDC-420VDC, 40VDC-350VDC, 40VDC-420VDC ), the output voltage stability, with output overload, short-circuit protection of overheating, since the resumption of functions.