I have a 12V LED strip that draws 120mA and I want to control it with a BS2 and a NPN transistor (e.g. 2N2222)
How do you calculate the value for the resistor between the transistor base and the BS2 pin?
The load will be connected between the collector and +12V and the emitter will be connected to GND.
I know that since it is not an inductive load, I will not need a diode.
Also, I am not sure what the minimum hFE is from the 2N2222 spec sheet...