Manufacturer: Gwinstek 

Model: PEL-500 Series DC Electronic Load

Feature

5-digit digital voltage, current and power meter
Simultaneous display of voltage, current, and watts
Short-circuit time can be set during short-circuit test
Automatic test function of overcurrent protection/overpower protection
The battery discharge test function can set the discharge stop voltage (Vbatt), discharge capacity (AH, WH) and stop discharge time.
Surge test can simulate boot overshoot current and transient current from hot plugging.
Constant current, constant resistance, constant voltage, constant power and Dynamic mode
Overvoltage, overcurrent, over power, over temperature protection and reverse polarity detection
Voltage polarity display can be set to positive value ("+") or negative value ("-")
Communications interface: RS232, USB