Features: Its output voltage is continuously adjustable from 0 to 30V, and the output current from 2 mA to 3A. When the output current exceeds the limit current, it will automatically switch to constant current mode to provide for protection for overload or fault, safe to use. LED indicator shows the limited state of output current. Easy to install and maintain, convenient to use. It can be used as a power supply for circuit experiments. Power supply module only, other accessories demo in the picture is not included Specification: Material: Circuit Board, Electronic component Input Voltage: Max. AC 24V Input Current: Max. 3A Output Voltage: 0-30V (Continuously adjustable) Output Current: 2mA-3A (Continuously adjustable) Output Voltage Ripple: Max 0.01% Size: app.8.4 x 8.4cm/3.31 x 3.31in Color: Red Quantity: 1 Pc Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 x Regulated Power Supply Module (Uninstalled)