An electronic ballast or electrical ballast is a device which controls the starting voltage and the operating currents of lighting devices. It does this through the principle of electrical gas discharge ..Electronic Ballast is a device which controls the starting voltage and the operating currents of lighting devices built on the principle of electrical gas discharge. It refers to that part of the circuit which limits the flow of current through the lighting device and may vary from being a single resistor to a bigger, complex device..Electronic ballasts use circuits to control the flow of current. These use a magnetic output transformer, an EMI filter, a rectifier and integrated circuitry to manage the flow of current very precisely. These ballasts are smaller and lighter than magnetic versions..The Tridonic PC T PRO electronic fixed output ballasts for fluorescent lamps are ideal for emergency lighting systems. Providing constant light when there are fluctuations in the mains power supply and efficiently shut down when a lamp becomes defected or exhausted. These lighting ballasts have a nominal lifetime of up .The two types of fluorescent ballast are magnetic and electronic. Intro to HID Ballasts . Is it an HID ballast you need? Whether it is a high pressure sodium ballast, metal halide ballast, or low pressure sodium ballast, we have it. Much like fluorescent lights, all HID lights require the use of a ballast to regulate the voltage supplied by the .Philips HFS Electronic Ballast . Philips HID E Ballast. Philips HID E Ballast. Philips HID Ignitor. Philips HID Ignitor. Vive HID Gear Box. Vive HID Magnetic Ballast W Vive HID Magnetic Ballast W Showing of Pages Our Location Rowell Court Block Veerasamy Road .