Lumen by Clement Di Natale
Learn instantly: https://ellusionist.com/products/lumen
No apps. Borrowed iphone - and you're able to turn the torch on, off, up or down... While they're holding it.
✅ Anyone can do this.
✅ No remotes or apps.
✅ Ends clean.
✅ Instant tutorial. You can learn this immediately after purchasing.