Reliable performance Vacuum-pressure impregnation is used to re-enforce the electrical insulation of the ballast, preclude moisture, inhibit noise, and dissipate heat;Pre-insulated voltage leads reduce the risk of shock and shrink installation time The basic ballast is the open core and coil which i

ADVANCE 71A5792001D PHILIPS ADVANCE ANSI CODE: M138/153 LAMP TYPE: MH MICROFARAD: 17 MFD NUMBER OF LAMPS: 1 BALLAST TYPE: MAGNETIC HID VOLTAGE RATING: 120/208/240/277 V WATTAGE: 250 WTT ANSI CODE: M138 OR M153 (PULSE-START) LAMP STARTING METHOD: PULSE NOT COVERED COIL POWER FACTOR: HIGH