Abstract: A power system for ultraviolet lighting includes a first network transformer structured to be powered from a first medium voltage power source and to output a first low voltage output; and a second network transformer structured to be powered from a second medium voltage power source and to output a second low voltage output. A first network protector inputs the first low voltage output of the first network transformer and outputs a third output. A second network protector inputs the second low voltage output of the second network transformer and outputs a fourth output. A spot network is powered from the third output of the first network protector and from the fourth output of the second network protector. A number of sag ride thru devices include an input powered from the spot network and an output structured to power a number of ultraviolet lights.