Philips Electronics India Limited supplies Vacuum Polyester Filled Electromagnetic Ballast. Philips Electronics India Limited is an ISO 9001 accredited company. The Vacuum Polyester Filled Electromagnetic Ballast is available with copper and aluminium winding produced with pr‚cised current setting for optimum operation of fluorescent lamps. The Electromagnetic Ballast is designed to be operated on fluorescent lamps of 230V/ 240V 50Hz mains supply.