10-gauge wire is a type of electrical wire that is commonly used for various applications, including residential and commercial wiring. The "gauge" refers to the thickness of the wire, with a lower number indicating a thicker wire. Specifically, 10-gauge wire has a diameter of approximately 2.59 mm, making it suitable for carrying higher electrical currents safely. This wire is often used in circuits for appliances, power tools, and lighting systems that require a significant amount of power. It is also popular in automotive applications and for connecting batteries in solar energy systems. Proper use of 10-gauge wire helps prevent overheating and ensures efficient electrical flow.