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Holiday Decorating/replace a non replaceable bulb


Can I replace a non replaceable bulb on my pre lit Christmas tree and if so what does it mean that I need a bulb with a shunt?

No, unfortunately some bulbs can not be replaced because they are fuse bulbs, and prevent short circuits.  You probably have a constant on or similar tree.

A shunt is the device inside the bulb that keeps the other lights lit when it burns out.  It completes the circuit.

Sorry to be the bearer of bad news.


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Bob Sponaugle


I can answer any question related to outdoor Christmas and Halloween decorating. It can range from the technical, as far as problems with wiring, how to fix light sets. It can also be asthetic, as far as color combinations, etc.


I have been decorating since I was 7 years old. I set up Christmas displays with over 32000 lights, tastefully done.

Awards and Honors
I have won neighborhood decorating contests since I was 14 years old

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