Have you ever noticed a small red bulb on your Christmas lights? If so, do you know what it is for?
It appears many people have no idea what its actual purpose is. However, a woman has now given an explanation for it on TikTok, leaving scores of followers amazed.
She shared a video with a demonstration of her putting the light to its intended use. You start by simply removing a single bulb and replacing it with the red one.
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"Remove regular bulb and replace," the TikToker advised. The extra light is not only different in colour from the rest, but it also gives the string of lights a flickering effect rather than using a modern day remote. The woman admitted: "I was today years old when I found out what these are for."
Thousands of viewers shared their surprise, with several admitting they thought it had a different use entirely, reports The Mirror. Many believed the small red light was a spare bulb or a replacement.
One person wrote: "I thought they were spares." A second added: "Wait what??????? I thought they were replacements!"
A shocked third user added: "I swear to god this app has taught me more in the last year than I have been alive." Another person commented: "Dude all they had to do was write that somewhere on the box. I wasted so many years not knowing about this."
"NGL I'm embarrassed that I didn't know this," a fifth added. However, some people said they knew the little bulb's real purpose.
One said: "As someone who grew up in the 90s…I thought everyone knew this - We didn't always have remote control lights!!" A second agreed: "I used to put up the Christmas lights at my parents' house, so I didn't know that this wasn't common knowledge."
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