The electric cooling fan is controlled by the Engine Control Module (ECM) through the cooling fan relay based on inputs from the following components: - The engine coolant temperature (ECT) sensor. - The intake air temperature (IAT) sensor. - The A/C selector switch. - The A/C refrigerant pressure sensor.
Staff bags are big enough to hold everything a pro would need. In fact, they are usually designed after the custom golf bags pros use, so they are larger and heavier than regular golf stand bags. Staff bags are often made of leather and have large pockets. They have space for a full set of 14 golf clubs.
Highly skilled golfers are capable of playing more specialized clubs and playing a wider variety of shots. Plus, the Rules of Golf allow you to carry a maximum of 14 clubs in your bag. (That doesn't mean you have to carry 14, though; you can carry fewer if you wish.).