TIP120 Power Darlington Transistors - 3 pack
Transistors are powerful little electronic switches, and when Adafruit's little NPN transistors aren't power enough for your project, they have been known to use these beefy TIP120 Darlington transistors. Great for whenever you need to control medium to high-power electronics such as motors, solenoids, or 1W+ LEDs. Adafruit find them so handy, they come in a pack of 3!
Each transistor is a general purpose amplifier, model TIP120 and has a BCE pinout. 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. For more details, check the datasheet.