ROBERTSON 3P20050 PSM213CQMVWCE/S eBallast for 2 CFQ13W/G24q CFL Lamps, Program Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF Equivalent to : Keystone EB-213T-UV-TP-PSD-NL Program Start, 1 or 2 Lamp, 4 Pin CFL (CFQ13W/G24q), HPF,120-277Vac., 90C Max Case Tem Save and order the 2P20050 Quik-Pak of 10 units individually packaged Save the most with the 5P20050 carton of 10 units, not individually packaged Go to RobertsonDirect.com for complete technical data.