It consists of pair of transistors, combined to give a massive gain.They can switch up to 60V at peak currents of 8A (not continuously, just peak!) and continuous current of 5A, with a DC gain of about 1000.
5A NPN Power Darlington Transistors
Customers who bought this product also bought:
Double Side Copper prototype pcb Universal Board/Universal Plate / Green Oil Plate / Test Plate for Arduino and Raspberry Pi
10mm Clear RED LED
Strong Magnets - 4mm x 2mm
TO-92 PNP Transistors -100mA
Level Shifter & Expander