Check the listing for details. 0-30V Red 2mA-3A Continuously Adjustable DC Regulated Power Supply DIY Kit. Condition: New. Listed at 9.57 USD. Features: High quality DC regulated power supply whose output voltage is continuously adjustable from 0 to 30V. Including a circuit to limit output current which enables output current to be continuously adjustable from 2mA to 3A. Provide current limiting, LED display, over load and short circuit protection. Easy to install and maintain.Note: Power production belongs to the high voltage large current circuit, please be sure to carefully, otherwise may cause harm to the personal safetyPlease install the resistances and diodes according to PCB diagram. Make sure resistance values, diode models and installation direction are correct. Please install other components from small to large, low to high. Specifications: Material: PCB Input Voltage: 24V AC Input Current: Max 3A Output Voltage: 0-30V (continuously adjustable) Output Current: 2mA-3A (continuously adjustable) Output Voltage Ripple: Max 0.01% Assembled Item Size: 9 * 8.5 * 3.5cm / 3.5 * 3.4 * 1.4in Package Included: 1 x DC Regulated Power Supply