Difference between types of transistors?
I suspect you haven't found the comments particularly informative, so I'll give you some circuits.
In general, Eugene Sh is correct. You can use either of these



simulate this circuit &ndash; Schematic created using CircuitLab
A few notes: R1 should be about 10 times the load resistance. This ensures that the PNP transistor is fully on, and using much more than this will limit the voltage applied to the load AND increase the power dissipated by the transistor.
V2 should not be more than about 20 volts - if it is, you may destroy the MOSFET when you ground the control. If you are working with a higher voltage, you'll need to increase the voltage applied to the control line when you &quot;ground&quot; it to turn on the circuit.
V2 should be more than Vgs(th), the turn-on threshold of the MOSFET, which for &quot;regular&quot; MOSFETs will run about 5 volts, although more is better, and a good target is about 10 to 12 volts. If you look around, you can find &quot;logic-level&quot; MOSFETs which have lower turn-on voltages, but you must be careful not to use the wrong variety by mistake.