Line Construction: TK01, 02 consisting of ballast and distribution in the tube ends. Tube in tube luminaries.
Circuit principle: 220V rectified by adding power factor correction circuit, inverter output, the direct use of high-voltage start lamp, no filament start capacitor.
Line features: the inductive heating device with the transistor two large separate, lower temperature rise, power factor up to 0.998, less than 10% of the current harmonics
Line advantages: high power factor, line stability.
Line defects: no filament current, cold start damage lamp large yellow circle and so prone to. Another direct use of shunt capacitors, line can not be empty, damaged lamp ballast will be damaged.
Pipe in Pipe Electronic Ballast