... , high stability AC power sources,suit for ballast, energy savinglamp,fluorescent lamp etc. 1. AC-DC-AC frequency conversion technology2 ... display Voltage5. Current, Power, Power factor, Frequency6. Zero output impedance, equivalent resistance ≤0.17. Insulation for power output to make test safely ... CHP-500 Output biggest current:0-150V is 4.2A,0-300V is 2.1A13. CHP-1000 Output biggest current:0150V ...