https://stream.echo6.co/videos/watch/899ad1db-f000-469c-acb7-4ca85c31a4ea This little torch is designed to plug into your phone's charging port and be powered from the phone. The main advantage of this is that it provides a more directional beam than your phone's camera flash, and will also operate with the phone off. I wasn't expecting much circuitry in this. Just a little control chip, transistor and resistor to limit current through the LED. But I was wrong. It has a complex two transistor toggle switch and a current regulated LED driver. The complex circuit and tiny PCB made this a very difficult device to reverse engineer. Here's a link to the item on AliExpress (not a sponsor). This is an affiliate link, but that will not affect the price you pay. https://s.click.aliexpress.com/e/_c3rVIFRb It should typically cost less than £2. If you enjoy my videos and wish to support the channel to keep it independent, you can do so by supporting me on Patreon. I release videos without adverts for critique and feedback on Patreon as soon as they have been made. I also release Patreon-only backstage videos when I'm working on shows. https://www.patreon.com/bigclive Alternatively, for a single contribution you can use PayPal:- https://www.paypal.com/paypalme/bigclive #ElectronicsCreators Mon, 13 Apr 2026 22:57:45 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/899ad1db-f000-469c-acb7-4ca85c31a4ea 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.