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The Complete Tool for Repairing Incandescent Christmas Holiday Light Sets | Bonus Extra 50 Replacement Bulbs | UL Listed (#230566)

4.0 4.0 out of 5 stars 4,506 ratings

$24.99 with 14 percent savings
Typical price: $28.99
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Purchase options and add-ons

Color Red
Brand LIGHT KEEPER PRO
Indoor/Outdoor Usage Indoor
Special Feature Quick Fix Method, Audible Voltage Detector, Built-in Testers
Light Source Type Incandescent
Power Source Battery Powered
Light Color Red
Theme Christmas
Occasion Christmas
Material Acrylonitrile Butadiene Styrene

About this item

  • LightKeeper Pro fixes most incandescent light sets in seconds with the squeeze of the trigger! LightKeeper Pro's Quick Fix Method repairs the #1 cause of light set failure known as a Shunt Issue (internal bulb failure).
  • Includes Bulb Tester, Fuse Tester, Bulb Puller, Storage Compartment for spare bulbs & fuses, 10 clear replacement bulbs (2.5V, 170mA). Even includes Batteries (1.5 Volt Alkaline).
  • Over 6 million LightKeeper Pros sold! Makes for the perfect gift to yourself or your friends & family who love to decorate!
  • Ulta-Lit Tree Company (the manufacturer) offers a Lifetime Warranty (excluding batteries & bulbs) on this item, testing to the highest standards to ensure that quality items arrive at your door. For more information, visit UltaLit.com.
  • THE LIGHTKEEPER PRO DOES NOT WORK ON LEDs. IT IS NOT INTENDED FOR LEDs, ROPE LIGHTS OR LIGHT SETS WITH CONTROL BOXES (INCLUDING BATTERY PACKS).
  • The Audible Voltage Detector is designed to work on UNLIT light sets only. Please view our instructional video, Audible Voltage Detector Part 2 for an explanation of why.

Additional Details

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This item: LIGHT KEEPER PRO - The Complete Tool for Repairing Incandescent Christmas Holiday Light Sets | Bonus Extra 50 Replacement Bulbs | UL Listed (#230566)
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Sold by Ulta-Lit Tree Company and ships from Amazon Fulfillment.
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 6.3 x 1.9 x 8.9 inches; 8 ounces
  • Item model number ‏ : ‎ 1201-QX
  • Batteries ‏ : ‎ 3 LR44 batteries required. (included)
  • Date First Available ‏ : ‎ October 11, 2011
  • Manufacturer ‏ : ‎ Lightkeeper Pro
  • ASIN ‏ : ‎ B01M12DZLM
  • Country of Origin ‏ : ‎ China
  • Customer Reviews:
    4.0 4.0 out of 5 stars 4,506 ratings

From the brand


Product Description

Christmas LightKeeper Pro Holiday Incandescent Light Set Repair Tool

Save your pre-lit trees, wreaths, light sets, garland, & more!

The LightKeeper Pro fixes incandescent holiday lights with the squeeze of a trigger in seconds. It is every decorator's must-have and saves you not only time, but money. No need to toss your pre-lit decor when you have lights out. Use the LightKeeper Pro to keep your holidays bright!

Great for Pre-Lit Trees

Great for Pre-Lit Trees & other pre-lit décor

The LightKeeper Pro fixes not just standard light sets, but pre-lit trees, wreaths, garland, and other expensive, pre-lit décor. Additionally, it fixes icicle lights and net lights. The LightKeeper Pro keeps your holidays bright!

LightKeeper Pro Incandescent Light set repair tool

Complete Tool for the Repair of Incandescent Light Sets

The LightKeeper Pro pays for itself and is provides everything you'd need to fix a light set:

  • Built-in Bulb & Fuse Tester
  • Includes 10 Spare Bulbs
  • Contains a Storage Compartment for spare bulbs & fuses in the handle
  • Comes complete with batteries
  • Has a Bulb Puller

LightKeeper Pro Incandescent Light set repair tool

Two Repair Methods in One Tool

The LightKeeper Pro contains two repair methods:

  1. The Quick Fix Repair Method - Simply plug your LightKeeper Pro into an empty socket on the faulty light set and pull the trigger. The LightKeeper Pro sends a pulse through the light set, finds the bad bulb, and fixes the shunt—allowing the light set to work properly. A Shunt issue is the #1 cause of light set failure.
  2. Audible Voltage Detector - When your light set is not experiencing a Shunt issue, you can use the Audible Voltage Detector to find other interruptions such as broken or missing bulbs, socket issues, etc.

LightKeeper Pro Incandescent Light set repair tool

Every decorator's must-have!

This Cool Yule Tool saves you time and money. No more throwing your light sets and pre-lit décor away. Now you can save them with the squeeze of a trigger. Over 6 million units sold to date and numerous resources available to assist you as you become a light set repair Pro yourself! We have instructional videos and various other resources available to assist in all of your light set repair questions.

What's in the box

  • 50 Clear Bonus Replacement Bulbs & Batteries
  • Brands in this category on Amazon

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    Customer reviews

    4 out of 5 stars
    4,506 global ratings

    Review this product

    Share your thoughts with other customers

    Customers say

    Customers appreciate the string light's ability to repair lights and find bad bulbs. They find the bulb tester useful for finding dead bulbs and replacing them. The product also protects trees and has a suitable bulb size. However, some customers have mixed opinions on its functionality, ease of use, and value for money.

    AI-generated from the text of customer reviews

    226 customers mention "Light fixability"180 positive46 negative

    Customers appreciate the product's ability to fix lights. They report that it works and fixes their lights. Some say it saves their pre-lit tree and helps maintain incandescent string lights with minimal maintenance.

    "...into the tool, pulled the trigger a few times, and like magic, the lights lit up!..." Read more

    "...In fact, this is the first time since new that every light is working on the tree. As a retired aerospace engineer it takes a lot to impress me...." Read more

    "...step one... The bulb worked so I popped it back in and voila, the lights came on...." Read more

    "...Pulled the trigger a few times and Voila! The lights came on in multiple places that weren't on before!..." Read more

    189 customers mention "Bulb tester"176 positive13 negative

    Customers find the bulb tester useful. It helps them locate faulty bulbs and replace them easily. The built-in light tester is handy, but some customers have found that you have to seat the bulb first.

    "...Put the bulb back and everything works! The light bulb tester is so handy when there is any doubt. I replaced nearly 50 bulbs that were defective...." Read more

    "...extra bulbs, so I could easily replace any damaged ones, which were easy to spot now that the strand was lit...." Read more

    "Got this as a panic buy but happy to have it. Helped a lot with testing bulbs as we were replacing burnt out ones on our christmas tree...." Read more

    "...There is also a bulb tester on the top that seems to only work for me when you take the glass bulb out of the plastic base as the balsam hill bulb..." Read more

    104 customers mention "Light repair capability"81 positive23 negative

    Customers appreciate the light repair capability of the product. They mention it has repaired a strand of bulbs, the Quick Fix Trigger repaired faulty shunts that are still unknown to them, and it helps find and repair the problem. Overall, it's a good temporary fix but not a permanent one. The Quick Fix feature alone restored over half of their bucket-full of "dead" lights.

    "...The Quick Fix Trigger repaired faulty shunts that are still unknown to me. I connected the LKP and squeezed the trigger 20 times...." Read more

    "...It even came with extra bulbs, so I could easily replace any damaged ones, which were easy to spot now that the strand was lit...." Read more

    "...It works just as described and saved me so much headache in christmas light repairs! For large sections the electric impulse fixes the problem...." Read more

    "...Not 100% of the time, but that's only because not every light strand is fixable...." Read more

    55 customers mention "Tree protection"55 positive0 negative

    Customers appreciate the tree protection tool. It helps them save money by locating missing bulbs and saving their Christmas decorations from being thrown away. They find it easy to use and say it protects their initial investment in the tree.

    "Tool works great, we replaced like 50 bulbs and saved our tree." Read more

    "This tool and a set of replacement bulbs saved my Christmas tree the last 2 years! I used every option on it for different strands...." Read more

    "This helped me save my Christmas tree last year! Definitely makes finding the bulbs that aren’t working much easier." Read more

    "...This tool saved our Christmas decorations from the trash, we will be getting the one for LED lights as well. Highly recommended." Read more

    50 customers mention "Bulb size"37 positive13 negative

    Customers appreciate the bulb size. They mention it comes with 50 additional spare bulbs, and the tool also comes with bonus replacement bulbs beyond the advertised 50. The storage space for the replacement bulbs is a great touch. Customers say it comes with just white lights, so be sure to have on hand the type and color that you want.

    "...The tool also comes with bonus replacement bulbs beyond the 50 it advertises...." Read more

    "...This tool is absolutely worth the money. It even came with extra bulbs, so I could easily replace any damaged ones, which were easy to spot now that..." Read more

    "...The only tricky thing is that this set does not come with a variety of different voltage bulbs...." Read more

    "...The good thing about the tool is it does come with some spare bulbs which I ended up using...." Read more

    759 customers mention "Functionality"523 positive236 negative

    Customers have mixed reviews about the product's functionality. Some say it works well, relighting 90% of the lights on the tree. Others report that it doesn't work at all, with bulbs not conveying power down the line, and at least half of the strands not lighting up at all.

    "...It is easy to use, incredibly effective, and worth every penny...." Read more

    "...Put the bulb back and everything works! The light bulb tester is so handy when there is any doubt. I replaced nearly 50 bulbs that were defective...." Read more

    "...I will say I did the first step, pressing the button 30 times and it wasn't lighting...." Read more

    "...the socket, and gave it a few clicks—and just like that, the lights worked again! I couldn’t believe it. This tool is absolutely worth the money...." Read more

    246 customers mention "Ease of use"154 positive92 negative

    Customers have different experiences with the product's ease of use. Some find it simple to connect to a light strand inside a light socket and pull the trigger. Others mention it took a bit of time to figure out and there was a learning curve to make it work.

    "...The repair tool arrived quickly and was incredibly easy to use...." Read more

    "...After replacing about 60 visibly burnt-out bulbs, the tree still wouldn't light up properly...." Read more

    "...But the instructions were well crafted...." Read more

    "Good instructions that you need to read before using.... Issue is many "IF's" for it to work on your lights...." Read more

    191 customers mention "Value for money"119 positive72 negative

    Customers have mixed opinions about the value for money of the product. Some find it worth the money and saves them time and money. Others say it's a waste of money, useless, and overpriced.

    "...It is easy to use, incredibly effective, and worth every penny...." Read more

    "...repair aspect and bulb tester did work well though, still not worth the time to repair versus just replace the lights." Read more

    "...The LKP impressed me for sure. Worth every penny to save an $800 tree and a whole lot of hassle...." Read more

    "...I couldn’t believe it. This tool is absolutely worth the money...." Read more

    Essential tool for fixing pre-lit Christmas tree lights! 🎄
    5 out of 5 stars
    Essential tool for fixing pre-lit Christmas tree lights! 🎄
    I cannot recommend the LIGHT KEEPER PRO enough! I have a 6-foot pre-lit Christmas tree that's over 5 years old, and ever since last year, it has been a struggle to keep it fully lit. Last year, I spent hours painstakingly replacing bulbs, removing them from their bases, and swapping out over 100 bulbs just to get the tree working. It was frustrating and time-consuming.This year, the situation was even worse. Only the bottom third of the tree was lit after setup. After replacing about 60 visibly burnt-out bulbs, the tree still wouldn't light up properly. I dreaded the idea of replacing every single bulb to find the one causing the issue.Enter the LIGHT KEEPER PRO. It arrived the next day, and I put it to use right away. Following the instructions, I inserted an empty bulb plug into the tool, pulled the trigger a few times, and like magic, the lights lit up! I quickly identified a bad bulb on the middle strand, replaced it, and then used the tool again on the top strand. After fixing both problem areas, my tree is now shining beautifully again.The tool also comes with bonus replacement bulbs beyond the 50 it advertises. I used several of them to replace additional burnt-out ones I noticed once the strands were fully lit and still have about 40 bulbs left.This tool is a game-changer for anyone dealing with pre-lit Christmas tree strand issues. It is easy to use, incredibly effective, and worth every penny. If you've struggled with unlit strands on your tree, do yourself a favor and get the LIGHT KEEPER PRO. You won't regret it!
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    Top reviews from the United States

    • Reviewed in the United States on November 18, 2024
      Item Package Quantity: 50Verified Purchase
      I cannot recommend the LIGHT KEEPER PRO enough! I have a 6-foot pre-lit Christmas tree that's over 5 years old, and ever since last year, it has been a struggle to keep it fully lit. Last year, I spent hours painstakingly replacing bulbs, removing them from their bases, and swapping out over 100 bulbs just to get the tree working. It was frustrating and time-consuming.

      This year, the situation was even worse. Only the bottom third of the tree was lit after setup. After replacing about 60 visibly burnt-out bulbs, the tree still wouldn't light up properly. I dreaded the idea of replacing every single bulb to find the one causing the issue.

      Enter the LIGHT KEEPER PRO. It arrived the next day, and I put it to use right away. Following the instructions, I inserted an empty bulb plug into the tool, pulled the trigger a few times, and like magic, the lights lit up! I quickly identified a bad bulb on the middle strand, replaced it, and then used the tool again on the top strand. After fixing both problem areas, my tree is now shining beautifully again.

      The tool also comes with bonus replacement bulbs beyond the 50 it advertises. I used several of them to replace additional burnt-out ones I noticed once the strands were fully lit and still have about 40 bulbs left.

      This tool is a game-changer for anyone dealing with pre-lit Christmas tree strand issues. It is easy to use, incredibly effective, and worth every penny. If you've struggled with unlit strands on your tree, do yourself a favor and get the LIGHT KEEPER PRO. You won't regret it!
      Customer image
      5.0 out of 5 stars Essential tool for fixing pre-lit Christmas tree lights! 🎄
      Reviewed in the United States on November 18, 2024
      I cannot recommend the LIGHT KEEPER PRO enough! I have a 6-foot pre-lit Christmas tree that's over 5 years old, and ever since last year, it has been a struggle to keep it fully lit. Last year, I spent hours painstakingly replacing bulbs, removing them from their bases, and swapping out over 100 bulbs just to get the tree working. It was frustrating and time-consuming.

      This year, the situation was even worse. Only the bottom third of the tree was lit after setup. After replacing about 60 visibly burnt-out bulbs, the tree still wouldn't light up properly. I dreaded the idea of replacing every single bulb to find the one causing the issue.

      Enter the LIGHT KEEPER PRO. It arrived the next day, and I put it to use right away. Following the instructions, I inserted an empty bulb plug into the tool, pulled the trigger a few times, and like magic, the lights lit up! I quickly identified a bad bulb on the middle strand, replaced it, and then used the tool again on the top strand. After fixing both problem areas, my tree is now shining beautifully again.

      The tool also comes with bonus replacement bulbs beyond the 50 it advertises. I used several of them to replace additional burnt-out ones I noticed once the strands were fully lit and still have about 40 bulbs left.

      This tool is a game-changer for anyone dealing with pre-lit Christmas tree strand issues. It is easy to use, incredibly effective, and worth every penny. If you've struggled with unlit strands on your tree, do yourself a favor and get the LIGHT KEEPER PRO. You won't regret it!
      Images in this review
      Customer image
      Customer image
      28 people found this helpful
      Report
    • Reviewed in the United States on December 2, 2024
      Item Package Quantity: 50Verified Purchase
      We have an 8-year old pre-lit tree by National Tree with 1,000 lights. It was pricey and we still love the tree. This year whole sections of lights were out. Worried we would be buying a new tree, or at least replacing pre-installed light sets, I scrambled to find a solution. The Light Keeper Pro found the problems in mere minutes! The Quick Fix Trigger repaired faulty shunts that are still unknown to me. I connected the LKP and squeezed the trigger 20 times. Put the bulb back and everything works! The light bulb tester is so handy when there is any doubt. I replaced nearly 50 bulbs that were defective. In fact, this is the first time since new that every light is working on the tree. As a retired aerospace engineer it takes a lot to impress me. The LKP impressed me for sure. Worth every penny to save an $800 tree and a whole lot of hassle.

      Here are two important hints. First, if you are dealing with an assembled pre-lit tree, don’t remove a bulb and walk away. Finding the empty socket is a nightmare. I suggest using a bright chip clip to mark the spot. Saved me so much time. Second, if you have an old tree, you will quickly realize that lights sets after 2021 changed base dimensions. The new ones are slightly smaller and do not fit. Over the years, I would pull a burned out bulb and toss it. Now I realize this was a mistake, because I can’t buy new bulbs with the right size base. So, the fix is to replace the bulb in the old base. So don’t throw away the old bases! Trust me on this. The spare bulbs that came with the LKP are high quality and include the shunt circuit. A bonus tip is to run the old incandescent lights on a dimmer and back off on the brightness - we prefer a dimmer tree, especially at night. Dimming will greatly extend the life of the bulbs. I am so happy. Merry Christmas.
      10 people found this helpful
      Report
    • Reviewed in the United States on December 14, 2024
      Item Package Quantity: 50Verified Purchase
      Thought I was going to have to restring tor but a new prelit Christmas tree. But it fixed the "shunt" problem in the first step. I will say I did the first step, pressing the button 30 times and it wasn't lighting. I was frustrated, then tested the build I had removed to do step one... The bulb worked so I popped it back in and voila, the lights came on. Highly recommend if you are frustrated with light strands where half don't work. I wish light companies talked more about what to do when half go out. I have thrown away a lot of strands over the years because half were out and I couldn't figure out how to fix it. More people should know about this!
      One person found this helpful
      Report
    • Reviewed in the United States on November 26, 2024
      Item Package Quantity: 50Verified Purchase
      I was initially skeptical that this product would actually work. Over the weekend, I was trying to set up a few pre-lit garland strands, but one after another, were malfunctioning. I was ready to toss them all and buy new ones, but then I remembered seeing this repair tool advertised on TV a few times. Figuring I had nothing to lose, I decided to give it a shot.

      The repair tool arrived quickly and was incredibly easy to use. I simply unplugged any bulb from the strand, inserted the tool into the socket, and gave it a few clicks—and just like that, the lights worked again! I couldn’t believe it. This tool is absolutely worth the money. It even came with extra bulbs, so I could easily replace any damaged ones, which were easy to spot now that the strand was lit.

      If you're as frustrated as I was with broken light strands, don’t hesitate to buy this product. It’s highly recommended!
      4 people found this helpful
      Report
    • Reviewed in the United States on December 9, 2024
      Item Package Quantity: 50Verified Purchase
      There is a learning curve to make it work, and we almost gave up, but tried again and it worked like a charm. Wish that we'd had it years ago, since we've had light strands go out and have had to replace them. This would have saved us money and hassle almost every year. It's important to follow the instructions and watch the videos to get it right, but once you have learned it, it's actually super easy to use. Most of the problems we had were due to the base of the individual light bulb. Once we found the one that wasn't working, we replaced it with a different bulb (that had a shorter base), and eventually realized we needed to replace the bulb from the old base and then it worked without hassle.
      One person found this helpful
      Report

    Top reviews from other countries

    Translate all reviews to English
    • Daniela
      5.0 out of 5 stars Mi mejor herramienta para Navidad!!!
      Reviewed in Mexico on December 4, 2024
      Item Package Quantity: 50Verified Purchase
      Me he ahorrado mucho en comprar nuevas series de luces con esta herramienta, hasta en este año en comprarme un nuevo árbol porque simplemente necesitaban “destaparse” la serie del árbol
    • Agatha Plonque
      5.0 out of 5 stars Totally works. Worth the $.
      Reviewed in Canada on December 12, 2020
      Item Package Quantity: 50Verified Purchase
      This "cool yule tool" (and srsly, why on earth aren't they marketing it under THAT name??) is truly worth the cash. I had my doubts, but went for it, since my pre-lit tree was only half lit this year and 2020 has been such a downer that I was determined to fix my lights rather than buy new ones. This 4-in1 dealio makes checking each light, socket, fuse and circuit easy to do and understand, and that's saying a lot, because I find anything electrical or plumbing-related utterly daunting. I managed to get my tree working within 60 mins. See my Before and After images. Bonus: it boosted my self confidence.
      Customer image
      Agatha Plonque
      5.0 out of 5 stars Totally works. Worth the $.
      Reviewed in Canada on December 12, 2020
      This "cool yule tool" (and srsly, why on earth aren't they marketing it under THAT name??) is truly worth the cash. I had my doubts, but went for it, since my pre-lit tree was only half lit this year and 2020 has been such a downer that I was determined to fix my lights rather than buy new ones. This 4-in1 dealio makes checking each light, socket, fuse and circuit easy to do and understand, and that's saying a lot, because I find anything electrical or plumbing-related utterly daunting. I managed to get my tree working within 60 mins. See my Before and After images. Bonus: it boosted my self confidence.
      Images in this review
      Customer image Customer image
      Customer imageCustomer image
    • AKB40
      5.0 out of 5 stars プレリットツリーの必需品
      Reviewed in Japan on January 13, 2022
      Item Package Quantity: 50Verified Purchase
      格安のプレリットツリーには不要な道具だが
      我が家のツリーは10数年前に海外で購入したプレリットツリー
      つかなくなった電球部分の修理にかなり使えます。
      上部スイッチを押して電球の断線部分、通電部分を音で知らせて
      ソケットに入れてトリガーを引いて通電確認
      あとは電球交換
      それまでは一つ一つ確認してましたので
      100倍早く修理できます。
      高額なプレリットツリーを持っている家の必需品
      来年のクリスマス用に買っておくことを勧めます
      顔以外製品なので到着までやや時間かかりますが
      それを差し引いても十分有用です!!!
    • Amazon Customer
      5.0 out of 5 stars Important tool to fix burnout light bulbs from Christmas tree
      Reviewed in Canada on January 12, 2021
      Item Package Quantity: 50Verified Purchase
      Good product, works nicely.
    • Public
      1.0 out of 5 stars Did not work at all!
      Reviewed in Canada on February 21, 2021
      Item Package Quantity: 50Verified Purchase
      Read all the instructions multiple times and no matter what, I couldn’t get any results with this. 3 sections of my tree are unlit and it didn’t even help me narrow down the root of the problem nor restore the circuit. A waste of time and money! One star is because shipping was really fast.