ROBERTSON 3P20034 RSO218CQ120 /A eBallast, Preheat Rapid Start, 2 Lamp, 4 pin CFL (CFQ18W/G24q), 18 Watt, 120Vac. Equivalent to: Philips Advance REB-2S18-M6, Universal SBT218L-120S, Hatch HC218RS/12/DJ (Studs) Equivalent to: Fulham NPY120218CFL, Keystone KTEB-218-1-TP-SC Save 33% and order the Quik-Pak of 10 individually packaged ROBERTSON units: 2P20034 RSO218CQ120 /A Two Year Factory Warranty-ONLY if the Amazon Seller is ROBERTSON WORLDWIDE. Take advantage of ROBERTSON's 60 years of electronic design and quality manufacturing experience