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

The power factor of fluorescent ballast " λ".
Although national standards do not set the lower limit of the rated supply voltage, rated frequency, and fluorescent lamp supporting line power factor λ ≥ 0.90. <BR> Supply current harmonic content flag "L" or "H". fluorescent ballast and fluorescent lamps in the rated voltage to reach steady state, with the "L" and "H" logo electronic ballasts supply current harmonic content does not exceed the national standard GB / T 15144 and GB T 17263 provisions