BC337 Transistor to control LED Strip With Common Ground

200 mA is not that much. But you must make sure that the voltage-drop across the transistor is small = transistor must be in the area of lowest possible saturation voltage
example:
Voltage-drop across C-E of transistor: 0,2V saturation-voltage * 0,2 A = 40 mW power-dissipation

Voltage-drop across C-E of transistor: 0,8V saturation-voltage * 0,7 A = 560 mW power-dissipation

I did a quick dudckduckgo again

and came up with this website

It shows a rarely used circuit as it is the common-base circuit


In this case the current-limiting resistor R1 is really important because without this current-limiting resistor the IO-pin would have a too heavy load

best regards Stefan