Advance Mark 10 Powerline REZ-2S54 – (2) Lamp Fluorescent Ballast – 54 Watt CFL – 120 Volt – Dimming – 1.0 Ballast Factor. Mark 10 Powerline Dimmable Electronic Ballast. Input: 120 Volts 60 Hz. High Power Factor Class P Sound Rated A. Type 1 Outdoor Inherent Thermal Protection. Unit Count:? 1 Count. Number of Items:? 1. Controller Type:? Push Button. Power Source:? Wired electric. Item Package Quantity:? 1. Light Source Type:? Fluorescent. Item Weight:? 16 Ounces. Light Source Wattage:? 54 Watts. Item Weight:? 1 pounds. Product Dimensions:? 16.75 x 1.25 x 1 inches. Item model number:? 10734. Number Of Pieces:? 1. Date First Available: October 16, 2010. Except on weekend or public holidays. We stand behind our products. Your receive the wrong item.