B50ST PHILIPS BODINE SELF-TESTING, DUAL INPUT VOLTAGE, EMERGENCY BALLAST
Universal Input; 1- or 2-lamp emergency illumination Initial Light Output: Up to 1400 Illumination Time: 90 Minutes (standard) Universal Input Voltage: 120 – 277 VAC, 50 or 60 HZ AC Input Current: 320 mA AC Input Power Rating: 4 W Can be used with most 17 W through 215 W (2' -8') T8, T9, T10, or T12 fluorescent lamps without integral starters, including U-shaped, HO, VHO, circline, energy saving, and (4-pin) twin, quad, triple and quadruple twin-tube compacts. One or two lamp operation may be selected (see Table 1). It is also compatible with most 1, 2, 3, and 4-lamp electronic, standard, energy saving, and dimming AC ballasts. If used in an emergency-only fixture, no AC ballast is necessary. The B50ST is suitable for indoor fixtures except air handling heated air outlets, and wet, damp, or hazardous location fixtures.