I wa

s at Walmart in the Christmas light section, buying some lights, and replacement bulbs for lights I already had, when I came across this Light Repair Tool.
I was very skeptical, but I thought I would give it a try. If it really worked, it could save a lot of time going through all the light sets. It always takes so long to go through the lights trying to find the problems and replacing burnt bulbs. Just locating the burnt bulbs were even a pain if too many were burnt out and the strand wouldn't light. I was hopeful!

Basically, you take one of the bulbs out of the socket of a strand that won't light and plug the socket into the gun. You then pull the trigger up to 20 times and voila! If there are no disruptions in power (ie light loose, or something wrong with the socket) the circuit will light! Then you can see which ones are burnt out and need to be replaced!

If they don't light, then you push the top button and run the red led light along the wires to locate the problem socket. It beeps at you as it detects the current. When it stops beeping you check that bulb. A lot of times I only had to pull it out and put it back in, maybe it was just loose. If it didn't light you keep checking. It sure took a lot of guess work out of locating and fixing the problems!
It also has a place on top to test individual lights to

see if they are burnt out as well as a fuse tester.
Of course as with anything it wasn't 100%. I had a couple of circuits that I just had to go light by light. But out of all the strands I went through it cut my time down considerably! I definitely think it was worth the $20!
I did however decide to stop buying these cheap lights. As I replace my lights, I'm replacing them with the LED lights. I'm hoping it will save me time and money in the long run. When I get the outside done, I'll post pics. We're almost there!