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LED Light String Repair Tools

LED Christmas light string repair tools for diagnosing and fixing faults in LED light strings — without replacing the entire string. The Christmas Light Emporium carries UltaLit LED Keeper tools for locating failed LEDs and restoring string function.


Backed by our Reindeer Proof™ Warranty.

2 products

Everything You Need to Know About LED Christmas Light Repair Tools

When an LED Christmas light string stops working, the problem is almost always a single failed LED — and replacing the whole string isn’t necessary. LED Keeper tools locate the fault by creating mini-circuits along the string, isolating the failed section so the specific bulb can be identified and replaced.

What’s in This Collection

LED Keeper PRO — The most advanced LED string diagnostic tool. Uses insulation piercing to connect directly to the copper within the string wire and illuminates functioning sections by creating mini-circuits. Pinpoints the exact failed LED without guesswork. Compatible with LED Christmas light strings.

LED Keeper Repair Pods (4-pack) — Replacement repair pods for use with the LED Keeper PRO.

How to Choose

Identify the specific failure before ordering: a blown fuse, a damaged plug, a broken socket, or a missing lens cap. Match replacement parts to your string's socket type — C7, C9, or mini — and to the wire gauge of your existing string. Purchasing the correct fuse size is especially important, so check the existing fuse holder on your string before selecting a replacement.

Frequently Asked Questions

What types of strings can the LED Keeper PRO repair? The LED Keeper PRO is designed for LED Christmas light strings. Refer to the product page for specific compatibility information.

How does the LED Keeper PRO work? It connects to the wire using insulation-piercing contacts and sends a signal through the string. Working sections illuminate; the failed section does not, pinpointing the fault location.

What’s the Reindeer Proof™ Warranty? Our in-house warranty covering manufacturing defects and performance failures. Duration varies — see individual product pages.

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Can I repair a string where multiple sections are out?

It depends on the failure type. If a section is dark due to a bad connection or faulty socket, a light repair tool can often isolate and fix it. If the wire itself is damaged, replacement is more reliable than repair. A light repair tester will help you quickly identify where the fault is.

LED Christmas Light Strings | Christmas Light Accessories

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