When you have a set of mini Christmas lights that won't light up, you can either toss them and buy a new set for a few dollars, or there's some cases where you may want to find and replace the burnt out bulb(s).

This video shows two accessories I use to find bad bulbs, and how each procedure works. The beeping was louder than I expected so I had to chop out parts of the video after it was uploaded so if it’s not clear how the beeping tester works, when there is live voltage it will beep continuously and if there is no voltage it may chirp once or twice and stay silent.

Non-contact voltage tester:
Amazon.ca: https://amzn.to/3HbGOeY
Amazon.com: https://amzn.to/3F753rZ

Light Keeper Pro:
Amazon.ca: https://amzn.to/3uAbVcp
Amazon.com: https://amzn.to/3FxGXs2

Workbench equipment I regularly use:
946C Solder Hot Plate 200mm x 200mm https://www.banggood.com/custlink/K3D...
ANENG AN8008 True RMS Multimeter https://www.banggood.com/custlink/KKD...
Minleaf NPS3010W Power Supply https://www.banggood.com/custlink/KKK...
FY6900 Dual Channel 60MHZ Signal Generator https://www.banggood.com/custlink/vGK...
Siglent SDS1104X-E 100Mhz Digital Oscilloscope 4 Channels Standard decoder
Amazon.com: https://amzn.to/36fH1ui
Amazon.ca: https://amzn.to/36fNWUc
(These are affiliate links. I may earn a commission if you shop through the links, it supports the channel and doesn't cost you extra)

Support me on Patreon:   / gadgetreboot