ROBERTSON 3P10022 SSN2PWS /A mBallast, Fluorescent, Preheat Start, 1 Lamp, Circline (FC6T9 or FC8T9), 20-22 Watt, NPF, 120Vac., 60Hz Equivalent to: PHILIPS-ADVANCE LC1420CTP, UNIVERSAL 200-C-S-P Equivalent to: GENERAL ELECTRIC GEM1FC8T9RS120IP, KEYSTONE SS22WSTP Save 41% and order the Quik-Pak of 10 individually packaged units: 2P10022 SSN2PWS /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