https://stream.echo6.co/videos/watch/ae589aaf-cea9-494e-bc52-3d72816901a7 I bought these testers purely because of the amusing packaging error. But it turns out that they have a very odd neon indicator bulb that looks custom made for the product. I get the feeling that the neon indicator is cost optimised using a fairly light style of manufacturing and seemingly using the lead-in wires as the glow electrodes. I may rig one up to be illuminated constantly to see how long it lasts. If you enjoy my videos you can help support the channel with a dollar or two for coffee, cookies and gadgets, and keep it independent from the quirks of the YouTube algorithm by supporting me on Patreon. I release content without adverts for critique and feedback on Patreon as soon as it has been made. https://www.patreon.com/bigclive Alternatively, for a single contribution you can use PayPal:- https://www.paypal.com/paypalme/bigclive #ElectronicsCreators Wed, 15 Apr 2026 11:43:53 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://stream.echo6.co https://stream.echo6.co/client/assets/images/icons/icon-512x512.png https://stream.echo6.co/videos/watch/ae589aaf-cea9-494e-bc52-3d72816901a7 All rights reserved, unless otherwise specified in the terms specified at https://stream.echo6.co/about and potential licenses granted by each content's rightholder.