ROBERTSON 3P10021 SP79P /A Fluorescent mBallast for 1 CFT7W/G23 or CFT9W/G23 Lamps, Preheat Start, 120Vac, 60Hz, NBF, NPF (Item sold now as SP79P AM in single quantities as ROBERTSON 3P10068; Available in a 10 ea. Quik-Pak as ROBERTSON 2P10068) Equivalent to: PHILIPS-ADVANCE LPL-5-9-TP, UNIVERSAL 4105F2P, KEYSTONE CC579TP Save 41% and order the Quik-Pak of 10 individually packaged units: 2P10021 SP79P /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