Review on 💡 Ultimate Illumination: Coleman Cable Contractor Extension Lighted for Reliable & Safe Workspace Lighting by Edwin Black

I use it to preheat a diesel engine by applying 115 VAC to the engine's glow plug. The car is outside, as is the socket. Outside sockets must be ground-fault protected. With an indicator at the end of the cord, you'll know you have voltage when you connect it to the heater plug and that there's still voltage when you disconnect it. I only use it when it's under 20F.