PHILIPS bodine - 1 Lamp, 120-277 Volt, 4 Pin Twin, Quad, Triple Twin Tube, Circline, Long Compact Fluorescent Emergency Ballast - 0 to 39, 40 to 79 Watt, Up to 1250 Lumens, 90 min Run Time, 2 Inch Long x 12 Inch Wide x 2-1/2 Inch High

Instant start ballasts turn on without a delay (<0.1 seconds) or flicker. They are best suited for applications with limited on/off cycles each day. They are economical and the starting voltage is high enough to start a discharge without the need for heating electrodes. 10,000 to 15,000 switch cycles before failure.