A surge protector is a device designed to protect electrical appliances from voltage spikes. These spikes can occur due to various reasons, such as lightning strikes or power surges from the electrical grid. By diverting excess voltage away from connected devices, surge protectors help prevent damage to sensitive electronics like computers, televisions, and home appliances. Surge protectors come in different forms, including power strips with built-in protection and standalone units. They are rated by their ability to absorb energy, often measured in joules. Investing in a surge protector can extend the lifespan of your devices and provide peace of mind during electrical storms or power fluctuations.