Why do Christmas lights all go out when one bulb blows?

Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and "lazy person's memoir," called Borg Like Me.

3991 Articles

By Gareth Branwyn

Gareth Branwyn is a freelance writer and the former Editorial Director of Maker Media. He is the author or editor of over a dozen books on technology, DIY, and geek culture. He is currently a contributor to Boing Boing, Wink Books, and Wink Fun. And he has a new best-of writing collection and "lazy person's memoir," called Borg Like Me.

3991 Articles

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John Graham-Cumming, of Geek Atlas fame, has posted a piece to answer the perennial question “Why do Christmas lights all go out when one bulb blows?” (the old-school in-series non-LED variety). And he shows ye ol’ “binary chop” technique for quickly rooting out the dead bulb.

Why do Christmas lights all go out when one bulb blows? (and how to find the broken one)