I am new to electronics so I'm not too sure about how I should be calculating the base resistor to use in this circuit.
I think the load resistor is calculated correctly (data sheet at bottom for reference), and I've used an online calculator on this site here to get the base resistor value. However, I'm not confident I used the correct values to start with.
Looking for any corrections or comments on this design.
Constant current driver has been suggested to me in another thread, but I think this might be too complicated for me to calculator resistor requirements.