3Pcs DIY D880 Transistor Series Power Supply Regulator Module Board Kit

Note: This is a DIY kit, you need to assemble it, no instruction supply. Sepecification: Input voltage: AC 12-17V (No direction) Output voltage: DC 8-14V (adjustable) Output current: 500mA Board size: 4.9 * 3.5cm Quantity: 3pcs Package includes: 1 x PCB board 2 x 9013 transistor 1 x D880 transistor 1 x 15 * 10 * 20mm heatsink 1 x M3 * 6 screws 2 x 3.96-2P pillars 4 x 1N4007 diode 1 x 0.5W 6.8V Zener diode 1 x 1000UF50V electrolytic capacitor 1 x 470UF25V electrolytic capacitor 2 x 10UF25V electrolytic capacitor 5 x 1K resistor 1 x 47K resistor 1 x 1K blue and white potentiometer Test, for reference only: