This cable is used for low voltage 0-10V ballast wiring and connection.18 AWG(or 18 gauge) which makes this heavy-gauge wire that has less impact on quality over longer distances. Pure Copper Conductors: our cable is built with solid pure copper conductors, providing maximum conductivity and reliability to ensure that your dimmer control systems run smoothly. CL3P (Plenum-Rated): our cable is designed with your safety in mind. It features a CL3P [highest fire retardant level ] that provides peace of mind in case of fire. RoHS Compliant: so you can rest easy knowing it doesnt contain hazardous substances that could harm you, your employees, or your customers (more information about this is in our Green Leaf Label). Other Versatile Applications: addressable fire systems, data circuits, monitor/detection,control circuits,initiating circuits, notification circuits, class 2 and class 3 DC power,commercial audio,luminaire, dimming, security and general-purpose power limited circuit