Power requirements refer to the amount of electrical energy needed to operate a device or system. This can vary widely depending on the type of equipment, its size, and its intended use. For example, a small electronic gadget like a smartphone may require only a few watts, while larger appliances like refrigerators or air conditioners need significantly more power to function effectively. Understanding power requirements is essential for ensuring that electrical systems can handle the load without overloading. This involves knowing the voltage and current specifications, which are often measured in volts (V) and amperes (A). Properly assessing these needs helps in selecting the right power supply and prevents potential damage to electrical devices.