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

Magnetic ballast is made of the core, coil, heavier, reliable quality, stable performance, but the start-up time required 1 - 3 seconds, flashes. Ballast power consumption, approximately 8W 40W power consumption. Electronic ballast transistor and diode resistance and capacitance, faster start, flicker-General, itself small power consumption, but more due to electronic parts, so less reliable, durable.
Electronic ballasts generally do not have a starter, magnetic ballasts generally have a starter. Stable magnetic ballasts, power factor 0.37. Good electronic ballast can hit 0.98-0.99 life inductor should take longer than the electron, but inductance bulky. The above mentioned are 220V 50Hz ballasts.

Fluorescent ballast 36W nominal power：

36W ordinary inductive power W 8 to 9

energy-efficient inductive power W <5

electronic ballast own power W 3 to 5