Great for LED strings. I had no problems with the wire piercing ability-- and the hole it makes is so tiny it won't cause any issues... I moved down the string halfway, then halfway again until I narrowed down the bad area. In my case, the LED's all worked and the string wiring was loose. I bet I'll get a lot of uses out of this thing and I'm glad to have added it to the Christmas collection.
Verified purchase: Yes | Condition: New
Great product... worked as advertised. I was able to save a strand of lights. Looking forward to using it next year on the Christmas tree.
Verified purchase: Yes | Condition: New
Great product. Fixed old lights that were blown. Easy to use and find which lights were good and bad
Verified purchase: Yes | Condition: New
It does the frustrating job of diagnosing problems with your Christmas lights.
Verified purchase: Yes | Condition: New
Works good. How to use it could be a lot better.
Verified purchase: Yes | Condition: New
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