4 Things to Know About Voltage Drop and Extension Cords

Voltage drop makes lights dim and motors run hot Long or thin extension cords add resistance, which reduces voltage at the end. Incandescent bulbs get noticeably dimmer, and LEDs may flicker or fail to light.

Motors and compressors suffer the most Tools like circular saws and refrigerators draw more current to compensate for low voltage, causing them to overheat. This shortens their lifespan or can burn them out.

Use the shortest, thickest cord possible Pick the shortest extension cord that reaches and the thickest wire gauge you can handle. For long runs, go up a gauge (lower number).

Avoid high-draw appliances on long, skinny cords Do not plug a space heater or power tool into a 100-foot 16-gauge cord. It will not perform like it is wired directly into the wall.