Quick Fix Trigger
Most miniature Holiday Light set failures occur when an individual bulb "shunt" fails to energize. These shunts are energized when a filament burns out. This causes a section of lights, usually 35 or 50, to go out instead of just one light bulb. This is because miniature light sets are wired in "series" and electricity must flow through each bulb, to the next, for them to light.The LightKeeper Pro Quick Fix Trigger sends a shaped, electrical pulse through the defective bulb, clearing the shunt. This allows it to operate properly. The current can then flow through the light set completing the circuit and illuminating the other bulbs.

The Patented LightKeeper Pro is the first product to FIX defects in a light set with the squeeze of a trigger.

Continuity Detector/Voltage Detector
Each wall plug has a "Hot", "Neutral" and "Ground" contact. Electricity is powered from the "Hot" contact and flows through the lights. It is similar to water flowing in a pipe. The LightKeeper Pro Continuity Detector/Voltage Detector uses an IC (Integrated Circuit) chip to find where the flow of electricity stops. It does this by detecting the minute electrical field emanating from the "Hot" wire even when a defect has caused the lights to go out. This electrical field when detected by the LightKeeper Pro, starts the beeping sound and continues as you scan the light string. When the electrical field stops emanating at the defect, the beeping stops. This shows where the problem is in miniature, series light strings. The detector finds the problem spot but the bulb or socket needs to be checked and appropriate repair action taken. The repair action may be securing a loose bulb, or testing a bulb to identify if it needs to be replaced.

I was going to hold off until next year to pick up one of these until I noticed the middle light string of my tree was completely out.

Off to Lowe's I go this morning and bought one. I hooked it to a light socket and a few clicks later, voila! This really saved me or I would have spent the rest of my day off un-decorating/redecorating the tree to replace the bad string.

Thanks again for the tip!

I bought a second one and mailed it to my brother in Pittsburgh. He's been standing by the door waiting for the mailman everyday!

I checked Lowes, HD, and Walmart and couldnt find this damn thing! I've got lights to fix!

I'm downgrading my enthusiasm about this. The lights that I fixed on my tree have gone out again, this time for good. It also failed to fix another string on an outside bush that went out Monday.

This has not been a good year for Christmas lights around my house.

Thanks Sman, I wish I would have read this post before I posted. Darn, I was excited about having a miracle tool.
Now all I probably have is a broken tool.

I'm downgrading my enthusiasm about this. The lights that I fixed on my tree have gone out again, this time for good. It also failed to fix another string on an outside bush that went out Monday.

This has not been a good year for Christmas lights around my house.

I followed all of the steps.....3 different times. I did the individual bulb check using the device and it said all of them were OK. One of these strings was new this year, the other was bought last year.