China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

HID BALLAST LOSSES – Line input watts minus lamp watts equal ballast losses. Ballast losses represent the energy consumed by the ballast to operate the lamp. Standard industry practice is to measure and publish ballast losses without the luminaire. This practice has been followed because no two fixtures are alike in construction and component location or operate at the same temperature.The amount of energy consumed is dependent on the type of ballast selected, its design, construction, and materials composition, and operating ambient temperature. A non-regulating ballast can be designed to produce minimum losses at a specific line voltage. If the incoming supply is different, an additional transformer must be used and energy consumption increases substantially. Regulating ballast designs trade off losses for other desirable features such as

lamp wattage and line voltage regulation, dip tolerance, stable power factor and lower fusing currents. As a result, since regulating ballasts are being asked to do more work, these ballasts have the higher losses.