LightKeeper Pro®Incandescent Christmas Holiday Light Set Repair Tool_UL Listed (#230566)

4 4 out of 5 stars | 10,181 ratings

Price: 19.99

Last update: 12-23-2024


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).
Great for Pre-Lit Trees, icicle light sets, net lights, wreaths, garland, and other pre-lit décor. Over 6 million LightKeeper Pro's sold!
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).
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.

From the brand

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  2. Can the LightKeeper Pro fix LEDs?

    Due to the different physics behind incandescent and LED light sets, the LightKeeper Pro cannot assist with LED light sets. But thankfully, the company behind the LightKeeper Pro also offers the LED Keeper -- the complete kit to repair LED light sets!

    How to tell if you are working with incandescents or LEDs?

    a) Incandescent bulbs have filaments and tend to get warm when lit a while LEDs do not

    b) Remove a bulb and look to see if the wires are offset or not [Offset = LED; Equal height = Incandescent]

    c) LEDs have a plastic encasement while incandescent has glass

  3. What type of bulbs come with the LightKeeper Pro?

    Non-flashing, Clear 2.5 volt Replacement bulbs, 170mA and 0.425 Watts.

    Can this tool fix a strand where every other light is out?

    The LightKeeper Pro can assist with incandescent light sets that are wired in series, meaning you can remove one bulb from a functional section and the section will become unlit. Typically, if every other bulb is out then we are dealing with a control box or a light set that is not wired in series. The LightKeeper Pro cannot assist with light sets that have control boxes, rope lights, battery operated sets, or LEDs.

  4. Why buy this for just a string of lights?

    The LightKeeper Pro is great for pre-lit trees, icicle lights, net lights, wreaths, wire frames with lights, and other pre-lit décor!

    Does this tool work with 220 Volts?

    No, the LightKeeper Pro was designed for 120 Volts only. Thankfully, there is an International LightKeeper available which is designed to work with 220 Volts (outside the U.S.).

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Top reviews from the United States

R Vega
5.0 out of 5 stars Awesome device.
Reviewed in the United States on November 12, 2024
I have a pretty large and expensive tree when I took it out this year it was not completely lit. I dreaded the thought of biting a new one and was set on going through every bulb to find the one that was causing the outage. That was short lived. It has more that 500 bulbs it is a 10’ tree. I knew there had to be a better more effective way. So I searched Amazon and found these devices. I bought two and this one is hands down superior to the other. Great buy and saved time and my sanity. And prob my marriage because i didn’t have to go buy another tree. Lol. It was actually quite satisfying being able to find the source easily and “repairing” the problem.
Steven Webb
5.0 out of 5 stars Well worth the money
Reviewed in the United States on November 29, 2012
I spent the evening using this tool on several different types of lights including single string, chasing lights, and icicle lights. I was able to use one or more of the features on this tool to fix them all.

The single strands were the easiest. I started with a completely dead set first. With a swipe of the voltage detector, and one single click, the strand came to life and the blown bulbs were visible.

The icicle and chasing lights required both the click fix, as well as, good old fashioned light by light testing. The built in bulb extractor and tester made shoot work of what is usually a very tedious task. The bulb extractor did take a little practice, but the bulb tester is super simple. Since these are multiple circuit strands the voltage detector couldn't be used becuase at least one of the wires running the length always has voltage present. However this was not a big deal.

The idea behind the click and fix is pretty clever. Basically if a light blows a shunt at the bottom of the bulb is supposed to bypass the blown filament and keep the other lights glowing. However if the filament and the shunt are both broken the stand cannot conduct electricity and the strand goes dark. With the tool plugged into one of the sockets and the strand plugged into the wall you pull the trigger on the tool. It sends a short high voltage burst through the bulbs basically arc welding the broken shunt back into place. This will allow the strand of lights to light revealing the blown bulb or bulbs. The high voltage emitter is a similar to what is used to start a cheap propane grill, or a butane lighter. It's pretty much the same clicking noise as well.

One thing I did notice was that if the shunt is too badly damaged the high voltage is not enough to weld it back together. However you can still see were the break is because when you squeeze the trigger the offending bulb will have a little high voltage arc visible inside.

I have to say my favorite feature was the bulb tester. You can make sure a bulb lights without the pain of putting it in and out of the compression sockets on the light strings. This was really helpful as I was using bulbs from a donor strand that had a broken cord. The last thing I wanted was to replace a bad bulb with another bad bulb.

All in all I was able to repair over $100 worth of lights with a $15 tool in a couple of hours time. I highly recommend this product for the number of tools built into the single unit, it's ease of use, and excellent results.
appappeal
4.0 out of 5 stars The lights work now!
Reviewed in the United States on December 4, 2023
I've been fascinated seeing this advertised for years. I have a prelit tree with the bottom strand out for years. This year I thought I'd try fixing it. I ordered the device at 4:15 and it arrived at 8:15. It took me a while and a you tube video to work it out. I didn't realize until much later there are better instructions folded within the cardboard backing. I pulled a bulb, plugged the socket in the "gun" and pulled the trigger repeatedly. Much to my amazement the string lit up, though rather weakly. Cool, fixed, I thought. Pulled off the "gun", plugged in the bulb and nothing. I never again got the string to light up for the trigger. That's when I watched the video. You have to figure out which blub is bad while the gun has it lit up. This is basically impossible on a prelit tree. On the video there's a string of lights on a table. I played with the blub testing feature, swapped out one blub, lights still out. The voltage detector saved the day. I found the beginning of the bad string, luckily it was at the bottom of the tree, and I could sort of follow it starting where it plugged into the tree. The "gun" beeps as long as there is voltage going through the wires. That narrowed it down to just a couple of lights to pull and test. Voila, I had lights. Four stars because it is not quite as magical as advertised, but still pretty great.

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