Hatch HC226PS/34/DJ CFL 2x26W Ballast - 347V - Stud Mount

Input Voltage 347Vac ± 10% Ballast Factor Normal Starting Method Programmed Start Lamp Connection Series Performancmance: Sound Rated: A Starting Temp (minimum):: 0°F, -18°C Maximum Case Temperature: 194°F, 90°C Meets FCC Part 18 (Class A) Non-consumer limits 3 Year Warranty 50Hz/60hz Frequency Physical Dimensions: Total Length (L): 5.00” Case Length (L2): 4.34 Width (W): 3.00” Height (H): 1.38” Mounting (M1): 2.00” Mounting (M2): 4.63” http://www.hatchlighting.com/products/fluorescent-ballasts-and-lamps/compact-fluorescent-ballasts/26-watt-compact-fluorescent-ballast-6.html ; http://www.hatchlighting.com/media/productPDF/hc226ps-34-dj.pdf