AC Power Source high-power, low distortion, high stability AC power sources,suit for ballast, energy savinglamp,fluorescent lam AC Power Source ... Digital wave synthesis, wave feed-back technology, low power distortion3. Controlled and tested by 16 bits MCU, ... A/D sampling technology,exactly display Voltage5. Current, Power, Power factor, Frequency6. Zero output impedance, equivalent resistance ≤0 ...