... distortion, high stability AC power sources,suit for ballast, energy savinglamp,fluorescent lamp etc. 1. AC-DC-AC frequency conversion technology2. ... 12 bits A/D sampling technology,exactly display Voltage5. Current, Power, Power factor, Frequency6. Zero output impedance, equivalent resistance ≤0.17. ... 300V12. CHP-500 Output biggest current:0-150V is 4.2A,0-300V is 2.1A13. CHP-1000 Output biggest ...