This is one of four warning labels designed for grid-tied PV systems. Recommended for use in identification of DC Disconnects, Inverters and Combiner Boxes.The labels are manufactured using ultraviolet (UV) resistant ink, permanent acrylic adhesive and base material designed to withstand environmental elements. A laminate is added to further add protection against prolonged UV exposure.The lettering on this label is bright white text printed on a red background, and reads as follows:WARNING - Dual Power SourcesSecond source is photovoltaic system(Label Height = .75", Label Width = 4.12")