ROBERTSON 3M20004 PSK226CQMVBLS /A Fluorescent eBallast for 2 CFQ26W/G24q CFL Lamps, Program Start, 120-277Vac, 50-60Hz, Normal Ballast Factor, HPF with Bottom Leads and Mounting Studs Save and order the 2M20004 Quik-Pak of 10 units individually packaged Commercial grade. Five Year Factory Warranty Go to RorbertsonDirect.com for complete technical data. Take advantage of Robertson's 60 years of electronic design and quality manufacturing experience.