T8 Fluorescent Program/Rapid Start Ballasts - High Ballast Factor

Narrow down your ballast search further by choosing how many lamps your Program Start high ballast factor (HBF) ballast runs - 1, 2, 3 or 4 lamps. High Ballast Factor ballasts have a power of 1.15 - meaning a 37W fluorescent T8 on an HBF ballast is actually running at ~37 watts.

High Ballast Factor 1 Lamp Program Start2-lamp Rapid Start HBF Ballast

3-Lamp HBF Fluorescent Program Start Ballasts4 Lamp Program Start HBF Ballast