GE T8 Fluorescent Ballast - 120-277V AC | Instant Start

QTP4x32T8/UNV ISN-SC (49947) is the GE T8 Fluorescent Ballast. For maintenance of a fluorescent troffer or strip, this model must match the fixture’s supported lamp configuration. The 4 X F32T8 operating configuration distinguishes this ballast from versions intended for a different lamp count. This is the instant start version, so the fixture wiring and lampholder arrangement must suit that starting method. The listed ballast factor is 0.88, which is relevant when comparing the output of the same lamps on different compatible ballasts.

The 120-277V AC supply specification must match the circuit serving this model. The listed body dimensions are length 9.50 in., width 1.68 in., height 1.18 in.; use them when checking the available space around the ballast compartment. Follow the wiring diagram for this model when making the replacement connections.

Buying tip: Match the lamp designation, number of lamps and supply voltage to the existing ballast.