... English and Chinese version. 1. Input voltage,current,power,PF,frequency,phase angle, total harmonic and 0 ... components 2. Input(DC) 3. Input voltage,current,power 4. Output(AC) 5.Test lamp voltage,lamp ... current,lamp power 6. Test changing curve and data of ... LED power 11. Input and output parameters tested simultaneously within 1 second 12. Portable style with single board ...