ROBERTSON 3P20002 ISS432T8HEMV /A eBallast for 4 F32T8 Linear Lamps, Instant Start, 120-277Vac, 50-60Hz, NBF, HPF (Item sold now as Model ISL432T8HEMV AH in single quantities as ROBERTSON 3P20160; Available in a 10 ea. Quik-Pak as ROBERTSON 2P20160) Equivalent to: Philips Advance IOPS4P32LWSC, ICN4P32N, Osram QHE4X32T8UNVISLSC, QTP4X32T8/UNV-ISN-SC Equivalent to: Fulham WHSG2UNVT8IS, General Electric GE232-MV-N 120/277, GE432MAXNULTRA Equivalent to: Universal B432IUNVELA, Hatch HL432BIS/UV/HE/W Save 18% and order the Quik-Pak of 10 individually packaged ROBERTSON units: 2P20002 ISS432T8HEMV /A Take advantage of Robertson's 60 years of electronic design and quality manufacturing experience