ROBERTSON 3P10051 SS2PWS AM Fluorescent mBallast for 1 FC6T9 or FC8T9 Circular Lamp, Preheat Self Start, 120Vac, 60Hz, Normal Ballast Factor, NPF with Automatic Reset Thermal Protector Equivalent to: Philips Advance RLQS122TPW; General Electric GEM1FC8T9RS120IP; Universal 200-C-S-P; Keystone SS22WSTP Save and order the 2P10051 Quik-Pak of 10 units, individually packaged UL Listed (Class P, Type HL, Type 1 Outdoor), Meets ANSI C82.1, RoHS Compliant, No PCBs Auto Reset Thermal Protection Go to RobertsonDirect.com for complete technical data.