· DL3021/DL3021A: single channel, DC150 V/40 A, total power up to 200 W · DL3031/DL3031A: single channel, DC150 V/60 A, total power up to 350 W · Dynamic mode: up to 30 kHz
· Adjustable current rising speed: 0.001 A/μs to 5 A/μs 

· Min. readback resolution: 0.1 mV，0.1 mA
· 4.3-inch TFT LCD, capable of displaying multiple parameters and 

states simultaneously
· Overvoltage/overcurrent/overpower/overtemperature/reverse 

voltage protection
· 4 static modes: CC, CV, CR, CP
· 3 dynamic modes: continuous, pulsed, toggled
· List function supports editing as many as 512 steps
· Battery test function, OCP test, OPP test, factory test function, etc. · Short-circuit test function
· Power-off memory function
· Built-in RS232/USB/LAN communication interface
· USB-GPIB module (optional)