Connecting a LIGHT (not an LED) to Arduino how to connect it correctly?

Question

Arduino

How to properly connect a light bulb (not LED) to GPIOArduino
Via resistor / transistor / directly / ...

Answer 1

if you don’t want to solder, then use an electromechanical relay, it’s nowhere easier, don’t connect directly, as Sergey said, the arduin will burn out.

Answer 2

What is written on your light bulb? Here I am holding a light bulb in my hands, it says 2.6V 0.12A. Those. In order for this light to burn brightly enough, a current of 120mA is needed, and as you know, the maximum allowable current for the AVR output is 40mA, and even then not for long.
You can turn it on through a transistor, of course, you can’t apply more voltage to the light bulb than what it is designed for + the voltage drop across the transistor collector. For my light bulb and a regular bipolar transistor, this will be approximately 3.3V

Answer 3

3 volt light bulb? Yes, directly cling, well, add resistance so that it does not burn out ...