Power supply problems occur when electrical devices do not receive the correct voltage or current needed to operate efficiently. This can lead to issues such as flickering lights, unexpected shutdowns, or complete device failure. Common causes include faulty wiring, overloaded circuits, or malfunctioning power supplies. Another significant issue is the fluctuation of power, which can damage sensitive electronics. Surge protectors can help mitigate this risk by absorbing excess voltage. Regular maintenance and monitoring of electrical systems can prevent many power supply problems, ensuring that devices function properly and safely.