<img src="http://www.bwgs.com/jpg/etl-ul/UL_CUS.png"width=70 alt="Underwriter Laboratories Canada - U.S. certification logo"title="Underwriter Laboratories tests this product to ensure compliance with American and Canadian national safety standards"><br /> The Fulham Workhorse 7 is a UL-listed, heavy-duty electronic ballast designed for demanding industrial settings. The 120-volt, 220-watt ballast operates up to four lamps and features instant-start capability and a high power factor. Dimensions are 19.24 inches by 1.02 inches by 1.03 inches. A five-year warranty is included.

<img src="http://www.bwgs.com/jpg/etl-ul/UL_CUS.png"width=70 alt="Underwriter Laboratories Canada - U.S. certification logo"title="Underwriter Laboratories tests this product to ensure compliance with American and Canadian national safety standards"><br /> The Fulham Workhorse 3 is a UL-listed, heavy-duty electronic ballast designed for demanding industrial settings. The 120-volt, 64-watt ballast operates up to three lamps and features instant-start capability and a high power factor. Dimensions are 6.38 inches by 1.5 inches by 1.02 inches. A five-year warranty is included.

<img src="http://www.bwgs.com/jpg/etl-ul/UL_CUS.png"width=70 alt="Underwriter Laboratories Canada - U.S. certification logo"title="Underwriter Laboratories tests this product to ensure compliance with American and Canadian national safety standards"><br /> The Fulham Workhorse 5 is a UL-listed, heavy-duty electronic ballast designed for demanding industrial settings. The 120-volt, 128-watt ballast operates up to four lamps and features instant-start capability and a high power factor. Dimensions are 8.4 inches by 1.73 inches by 1.01 inches. A five-year warranty is included.