LED Keeper LED Light Set Repair Tool

I liked that the product did exactly what it was supposed to do. In the past I would have thrown out many strings of LED Christmas lights. I was able to fix every string and therefore saved a lot of money.

2025 update: still ticking! Hauled out my lights and found three strands either completely out or halfway out. Used the tool to isolate the bulbs, replaced them, and saved another $80. Note: do not throw away the replacement bulbs that are usually included with your new lights or you will have to buy replacements. I recommend hanging on to the replacements in a plastic bag and store them with your other lights.2024: Frustrated taking out my Xmas lights to find half-lit strings. Googled “how to fix” and kept getting results for this thing. Very skeptical but reluctant to chuck and replace lights. Received next day, watched video tutorial, got to work. It takes a little practice, but in about an hour, I successfully re-lit $80 worth of lights. Thankfully I still had replacement leds from last year, or it wouldn’t have worked. Love the fuse tester and bulb tester on it. For someone who doesn’t know anything about electricity, it made this process easy and oddly satisfying. Sadly, it cannot fix the root cause, which is horribly designed and cheaply manufactured Christmas lights. Highly recommend this gadget.

After watching the instruction video online on how to test the bulbs without having to remove each one really helped. It was way easier to use than trying to find the dead bulbs in the old fashion mini bulbs sets. I'm not sure how I feel about the way the pin needs to pierce thru the shielding on the wire in order to test the bulbs so that's why I'm not giving it a 5 star, but you don't have to do it that way, you could take out each bulb and test them but I just didn't have the patience. I knew I had at least 2 burnt bulbs and it was much quicker to use the pin gun. This string of LED lights would have been thrown out if I didn't buy this tester. Not sure if it's worth the price but glad to have it in case I have another set go out on me over the holidays.

II have used this company incandescent light string repair tool in the past with mixed results and to put it mildly I was very skeptical if this would work. My first repair was to a 70 LED/24 foot outside string that was wrapped on a tree but in 10 minutes it was fixed. I was very lucky on this string as LED's that out were close to the plug on this mounted string. The second set fixed was an unmounted 92 LED/32 foot string and took less than two minutes to repair. With the written instructions and online video you cannot go wrong.The lessons I learned are:-Unmounted lights are easier to repair. The tester comes attached to a 3 foot cord limiting the length the tester can be used. This is only a minor issue and limited to installed lights. It easily found the one broken LED on the 32 foot unmounted string.-Be sure the wire is correctly positioned in the tester before pulling the trigger. It is very easy to incorrectly position/select the wire causing you to repeat the procedure. Although this was identified by another reviewer I still managed to do it.-After correctly positioning the tester on the wire and pulling the trigger you have to allow enough time for the LED's to light on longer strings.-Strings with multiple failures take some extra thought, time and require a little more effort. Initially you will get inconsistent results but if you decrease the number of LED's tested and just work from one end of the string it works. .Bottom line this tester is easy to use, does its job and I would buy it again. I do share the same concerns with reviewer MBR as to fixing or replacing multiple failure strings. My multiple string LED failures were only one year old am questioning the quality of these strings. The common issues for the failures were almost 90 % involving the copper wires where it was bent to be inserted into the LED holder.Note: The write up said it came with 3 1.5-volt batteries are included, In reality it has a 9 volt battery

I was HIGHLY skeptical about this tool when I bought it, but it does exactly what they say it does and how it is shown in the videos on their website [...]I learned a few things about how it works that might help others use it more effectively.Many of the complaints I read indicate that nothing happened when they squeezed the trigger; others said it was necessary to hold the trigger for a moment. They're correct, and here's why. When it's working, you can hear a high-pitched whine like many voltage-boosting circuits (think about the whine when you turn on a big camera flash unit), and it ramps up over a few seconds until the lights come on (if they do). As far as I can tell, it starts at a low voltage to avoid burning out working LED bulbs. If not enough current is flowing it starts ramping up the voltage. When the circuitry detects that the current flow indicates the LEDs are illuminating, it stops increasing the voltage. This makes perfect sense as a design. If you're on LED #2, it'll light almost instantly. But if you're testing halfway down a 200-bulb string, it's going to take a few seconds before it reaches the proper voltage. Overall it is a brilliant design, but it can confuse the user if you're impatient. So be a little patient while you work.Also, it's easy to THINK you have the wire positioned properly in the test slot. Sometimes it took several tries to get right. Be careful to seat the wire correctly before you squeeze, then as I noted above be prepared to wait several seconds if you're not close to the yellow plug end of the string.I gave it 4 stars instead of 5 for a few design compromises and challenges.It wasn't quite so happy with a 200-bulb string that had a transformer block halfway down. It was very hard to understand what it was doing, and the results were strangely inconsistent. On those multi-segment strings, it might light the left half or the right half, or sometimes parts of both. So the process of finding a failed bulb became much harder than a simple binary search (look it up). It does work, but not as simply as with a shorter string.Also, this tool doesn't instantly fix LED strings with more than one failed bulb. You still have to work until you find all the failures. So this tool will be great to immediately fix a failed string when you're pretty sure only one bulb failed. But if it's an older string with several failed bulbs, prepare to spend some time.I really like the bulb testing slot. I would be happier if it supplied alternating current; as it is, you must try both orientations as only one will illuminate the bulb. But it was still fairly easy to use.I would be a bit happier with a longer cord; I had to use an extension cord at one point when the string was already mounted on a wireframe. Not a big deal, and it was fine for sitting on the living room floor testing an unmounted string.All in all, this is a valuable tool I can heartily recommend despite its minor faults. I think tonight's single string repair paid for half the tool's cost, and it will have completely paid for itself the next time I use it.