Technical Questions and Answers

Technical Questions and Answers

Top Questions

Why are half my Christmas lights out?

More than likely, it’s a missing or unseated bulb. A few-minutes visual inspection will usually reveal the culprit.

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Can you shorten a string of lights?

Short Answer: It depends on the type of Christmas lights. Smaller serially wired sets of Christmas tree lights should not be shortened. Traditional 18 AWG Christmas cord can be cut to fit.

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Hanging Christmas Lights: Plan for Success

This article discusses the fundamentals of designing a Christmas Display.

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How many lights can I string together?

Check the specification of your lights to see exactly how many can be run together. The UL rating is 210 watts in series.

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How do you make lights twinkle?

Using a red-tipped flasher bulb can flash a light set on and off. Mix the set with steady burning strings to create twinkle. 

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What is the difference between C7 and C9 bulbs?

The short answer is that C7 bulbs are smaller than C9. They both screw into traditional Christmas cords but the bases of the C9’s are larger.

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Latest Tech Q/A

Latest Tech Q/A

Q/A: What do I use to line my roof?

Q/A: What do I use to line my roof?

After lighting a Christmas tree, lining a roofline is one of the first projects folks start with when decorating outdoors for Christmas. There are 4 basic components required to outline a roofline. Christmas light cord Bulbs Clips Gilbert Plugs 1. Christmas Light Cord...

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Are C7 and C9 bulbs the same?

Are C7 and C9 bulbs the same?

Great question, and we hear it several times a season. Short Answer: No, they are very similar but are different sizes. Longer Answer: C7 bulbs are shorter with smaller diameters than C9s. Both are installed in 18 AWG traditional Christmas light cords. Many of us...

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Christmas Lights Lingo!

Christmas Lights Lingo!

Common Christmas Lights Terminology and Vocabulary 5mm This is a shape of LED lens that is about the shape of and slightly smaller than a pencil eraser. It has been referred to as "wide angle" and "conical" in the past since there is a cone shape molded into the lens...

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LED Bulbs: Comparing the Whites! 2022 Edition

LED Bulbs: Comparing the Whites! 2022 Edition

This year, we are releasing Natural Pure White, the third available color white in our LED product line. Commercial C9 LED bulbs with E17 bases and 5mm light strings have been released for the 2022 season. More versions will follow next year. Here is a photo comparing...

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Top 10 Christmas Lights Questions

Top 10 Christmas Lights Questions

We've been answering customer questions for 16 (almost 17!) years. Here are a few of the technical questions we hear most often. How do I light a really large tree? This project provides a great reference for large tree projects....

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Video: What is the “mini” in minilights?

Video: What is the “mini” in minilights?

https://youtu.be/hJmJ6-4SHT4 Transcript Shellie: Today's video answers the question, "What's the mini in mini lights?" What? David: Focus Shellie: We get this question because things have really changed in Christmas lights. At one point, back in ancient history, like...

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Green 12-volt LED Christmas Lights on Green Wire

Green 12-volt LED Christmas Lights on Green Wire

https://youtu.be/9RybjDSEzXc Transcript This is a set of 12-volt DC Christmas lights on green wire. You can see that there is a light section which is plugged into a 15-foot extension section that plugs into an accessory outlet. Now, this light section has 20 green...

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Can I use a gilbert plug on a set of mini lights?

Can I use a gilbert plug on a set of mini lights?

Hi, great question. Unfortunately, the answer is no for a couple of reasons. Mini lights should really not be cut because they are wired in series and their bulbs are rated for a specific current draw. The better choice is to find a string of lights whose length most...

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Will your C7 or C9 bulbs work in my cords?

Will your C7 or C9 bulbs work in my cords?

Short answer: Maybe. Longer answer: We used to be able to answer this question with a resounding yes when the question was about the style of bulbs that come as threaded bulbs and threaded sockets of the style that folks have been using to install lights around their...

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Can you mix C7 and C9 bulbs together (in the same cord)?

Can you mix C7 and C9 bulbs together (in the same cord)?

Short answer: No, they won't fit into the same cord because they have different-sized bases. Longer answer: This is a great question, especially since we've had a larger number of first-time Christmas lights customers this season. We have heard this question in this...

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How many light strings do I need to wrap my tree?

How many light strings do I need to wrap my tree?

We've all seen tree trunks wrapped for Christmas, for weddings, and events. They are truly glorious. LED light strings with specifications allowing 100's of feet of light to be run on a single outlet has revolutionized the density and number of lights that can be...

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Can I cut Christmas Lights?

Can I cut Christmas Lights?

https://youtu.be/_Bh7lA03LvY Transcript I've assembled this mess of Christmas lights to answer a simple question, can Christmas lights be cut? Other forms of the question are, can glass mini lights be cut, and can LED light strings be cut? These are the types of...

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How to change a fuse on Christmas lights

How to change a fuse on Christmas lights

https://youtu.be/CFbNiDgcnp0 Transcript This video answers the question, how do I change out a fuse in my Christmas lights? So, this is going to be our test case. This set of lights is a C6 LED light string. And this male plug has a fuse right here. And we're gonna...

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How well do salt and lights mix?

How well do salt and lights mix?

Short answer: Ocean saltwater breezes combined with sun and high temperatures are hard on Christmas lights and light strings. Installation on or near a beach will shorten their lifespan. Longer answer We love nothing better than beaches, warm evenings, and a string of...

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Get This Look: Deck Out Your Ride

Get This Look: Deck Out Your Ride

Summer parades are just around the corner. Twelve-volt string lights make lighting a car for a night time event quick and easy. We love how 5 strings of multicolor, and single strings of warm white and red lit up this 1960's era Cadillac for a Christmas parade. Find...

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How many gilbert (vampire) plugs do I need to order?

How many gilbert (vampire) plugs do I need to order?

Gilbert plugs are part of many of our Get This Look materials lists. They are required when custom C7/C9 cords made with 18 SPT-1 or SPT-2 lamp cord style cords are "cut to fit". Short Answer: These plugs work ONLY with a C7 or C9 traditional parallel-wired cord like...

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Get This Look: Wrapping Trees with Lights

Get This Look: Wrapping Trees with Lights

We love this customer project. Using a 100-foot C9 cord and 100 traditional incandescent (glass) bulbs. The 12-inch spacing makes this combination a good fit for larger trees. Since the lights look equally well installed along a roofline, the dual-use makes planning...

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