Will this work on LED lights?

You cannot use the shunt repair function of this device on LED light strings, but the bulb tester and the open circuit detector will work. However, if all you have are LED lights, then I would recommend buying the model they make specifically for LED lights.

Pulling trigger didn't work. Voltage tester seemed to work but when I replaced the bulb that didn't beep it still didn't work???

You have to pull the trigger 4 or 5 times. also you need to check down the entire string, because more than one light may be out. I usually test the fuse in the plug part first, because if that is out, nothing will work. test your fuses, then run down the lights with the gun pressing the top button, it will "flash beep" until you get to the lights that aren't working. do this to the entire strand. then replace all those that it does not beep at. it is not a 5 second fix when you have a stand not working. take the 5 - 10 minutes to do all this and you will love this tool.

So... What does it actually do? I mean, exactly how does it work?

I purchased to use with my pre-lighted tree and tried again to use it on tree. I agree about how does it work?

will this work for a Martha Stewart pre-lite tree?

I have not tried it on a pre-lit tree but according to the instructions it is supposed to work on pre-lit trees too. It does work on strings of lights but if you have a string of lighted garland and you have several lights blows you might have to take some out of the socket and test them one at a time. The string of lights will usually still work with some burned out bulbs but when you reach a certain number of blown bulbs then the string will stop working. Good luck.

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LightKeeper Pro® Incandescent Light Set Repair Tool

Product ID: 255293742

Details

Brand
LIGHT KEEPER
Power source
Battery
Style
Modern
Colour
Red
Item weight
136 g

💡Includes 10 Replacement Bulbs

🔍Audible Voltage Detector

🔧Quick Fix Method

1504 Kč

Duties & taxes included

In stock

Sold byAmazon Czech RepublicDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Illuminate Your Holidays! ✨ Quick fixes for festive vibes.

ALL IN ONE TOOL - Comes with bulb tester, fuse tester, and storage for spares.
INSTANT REPAIRS - Fix incandescent light sets in seconds with a simple squeeze!
TRUSTED BY MILLIONS - Join over 6 million satisfied users who keep their lights shining bright!
SHUNT ISSUE SOLUTION - Tackle the #1 cause of light failure effortlessly.
CIRCUIT INTERRUPTION DETECTION - Easily locate issues with the built-in voltage detector.

The LightKeeper Pro® is a versatile tool designed to repair most incandescent light sets quickly and efficiently. It features a Quick Fix Method for shunt issues, an Audible Voltage Detector for circuit interruptions, and includes essential accessories like a bulb tester and replacement bulbs. Perfect for maintaining your holiday décor, this tool has sold over 6 million units, making it a trusted choice for festive lighting solutions.

Specifications

ASIN	B000R8KBOK
Best Sellers Rank	#4,912 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #8 in Circuit Testers
Brand Name	LIGHT KEEPER PRO
Color	Red
Customer Reviews	4.0 4.0 out of 5 stars (10,856)
Global Trade Identification Number	00784642012019
Included Components	LightKeeper Pro® Incandescent Light Set Repair Tool
Item Dimensions	7.7 x 1.5 x 4.7 inches
Item Highlight	LightKeeper Pro fixes Christmas Holiday Incandescent Light sets fast & easy; great for pre-lit trees
Item Weight	4.8 ounces
Manufacturer	Ulta Lit Tree Company
Maximum Operating Voltage	120 volts
Measurement Type	Inches, Pounds
Minimum Operating Voltage	120 volts
Model	1201-A2
Number of Items	1
Part Number	01201
Power Source	Battery Powered
Specification Met	UL
Style Name	DIY; environmentally conscious
UPC	798837826664 885391365019 301152656214 784642012019 885916959358 885325680911 794615116149 784642712018 989898312108 490511910538
Warranty Description	Lifetime warranty.

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TrustScore 4.5 | 7,300+ reviews

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