Can I run Incandescent and LED light strings together?

Can I run Incandescent and LED light strings together? (...in series with one another? ...end to end?)

Short Answer: No

Longer Answer:

Mixing LED and Incandescent Christmas Lights: A Refreshed Guide 2024

The Problem with Mixing

It's a common question, especially as many of us transition to energy-efficient LED Christmas lights: Can you plug LED and incandescent light strings together? The short answer is no, and here's why:

  • Series Wiring: Most traditional Christmas lights, both LED and incandescent, are wired in series. This means the same electrical current flows through every bulb on the string.
  • Current Draw: Incandescent bulbs draw significantly more current than LEDs. Plugging them together forces the LEDs to handle excessive current, potentially causing blown fuses, damaged bulbs, or even ruining the entire light string.

Safety First

Beyond the risk to your lights, mixing LEDs and incandescents can create a fire hazard. Overloaded circuits and damaged wiring are serious concerns.

Recommendations

  • Separate Strands: Always keep LED and incandescent lights on separate strands plugged into different outlets.
  • Surge Protection: Protect your LED lights with a surge protector, especially when used outdoors.

Article originally published September 20, 2011. Edited and re-released August 30, 2024

 

 



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Can I run Incandescent and LED light strings together?