T8 Fluorescent Instant Start Ballasts - Normal Ballast Factor

Narrow down your ballast search further by choosing how many lamps your normal ballast factor (NBF) ballast runs - 1, 2, 3 or 4 lamps. Normal Ballast Factor ballasts have a power of 0.88 - meaning a 32W fluorescent T8 on an NBF ballast is actually running at ~28 watts.

Normal Ballast Factor 1 Lamp Instant Start2-lamp NBF Ballast

3-Lamp NBF Fluorescent Ballasts4 Lamp Instant Start NBF Ballast