Light Keeper Pro-The Complete Tool For Fixing Your Christmas Lights

I bought this item last year and it helped me get all the original light strings lit on two pre-lit Christmas trees. One of them is about 10 years old, the other one is 5 years old.The trigger fix solution works great and will activate the shunts in strings where there are multiple failures. The trigger will not work if there are bulbs missing from their sockets, loose from their sockets or if the string was left to go "supernova". This happens when you neglect the string for so long that practically all the bulbs are burned out. These light strings are made of a bunch of low voltage lamps hooked up in series so they can run off of the 120V mains voltage without an expensive power pack transformer. In a typical 50 light string, each bulb is rated for about 2.5 volts. (100 and 200 lamp stings just have multiple 50 lamp strings) When a lamp goes out, the internal shunt fuses and allows the rest of the lamps to remain lit but the remaining lamps get a little more voltage. The more lamps that go out, the brighter the rest get and start burning out at an even faster rate because of the over voltage. Within a short period of time as the remaining bulbs fail, the rest get super bright for a short period (like a super nova star) before they all fail. If you look at the lamps and most of them are blackened, chances are every bulb in that string will need to be replaced. If it is a loose string, chuck it. But with pre-lit trees, there really is no choice but to replace all the bulbs.I find loose strings on sale and make sure the bulbs fit the sockets on my trees. It seems they change bases and bulb diameters from year to year just to mess us up and make us buy new trees and light strings.Do not use this device on LED strings as the high voltage pulse will destroy LED's. And while I'm talking about LED's, I just want to mention that I think LED light strings suck. They supposedly last 50,000 hours, yet I have strings a couple of years old that have burned out LED's. If you think finding replacement bulbs for conventional lights is bad, LED's are even worse. It doesn't seem like you can pop the LED lamp out of a base and swap it with another base. Every manufacturer is different. Keep buying regular lights because LED's are not worth the premium price, they still burn out, and I doubt it makes a noticeable difference in my electric bill. (it's not like I have millions of lights)Merry Christmas!

Overall works well, but I think I spent 30 minutes trying to work out how to use the tool. Overall, a lifesaver!! Just expect to spend some time figuring it out.

How did I not know this existed??? It takes a couple tries to figure out how it works but once you do then the light repair is immediate. Type Light Keeper Pro in your browser to look at a picture & description.

A string of lights on my artificial Christmas tree went out. We couldn't find the problem. Did a Google search and saw this product. Thought it was worth a try to save a $500 artificial tree. Worked easily and quickly identified the problem bulb that we were unable to find. Was pleasantly surprised. Going to use it on some Pottery Barn snowflakes that won' t light. Hoping for the same results.

Really easy but kinda pricey