If your Christmas lights stop working check the mini fuse box at the plug!! : r/lifehacks
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allsun Christmas Light String Tester Non Contact Voltage Finder Meter Light Bulb&Fuse Checker Gun 12-600 V AC Mini Light Repairing Tool, Blue: Amazon.com: Tools & Home Improvement
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allsun Christmas Light String Tester Non Contact Voltage Finder Meter Light Bulb&Fuse Checker Gun 12-600 V AC Mini Light Repairing Tool, Blue: Amazon.com: Tools & Home Improvement
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ConstantON® Incandescent Replacement Bulbs - 6mm - Official Holiday Lighting Replacement Part Store