Why would light switch manufacturers write the words on and off on their switches? Is it not obvious if the light is on or off? - Quora
![120+ Turning Off Light Switch Illustrations Stock Illustrations, Royalty-Free Vector Graphics & Clip Art - iStock 120+ Turning Off Light Switch Illustrations Stock Illustrations, Royalty-Free Vector Graphics & Clip Art - iStock](https://media.istockphoto.com/id/1330372099/vector/flat-light-bulbs-turned-on-and-turned-off-with-light-switches-on.jpg?s=612x612&w=0&k=20&c=xIxifwiqwZHMztrFZIsAfCqtJZxbIgJ43l3dc38zTUQ=)
120+ Turning Off Light Switch Illustrations Stock Illustrations, Royalty-Free Vector Graphics & Clip Art - iStock
![Light off, electric switch icon. Simple outline style. Power turn off button, toggle switch of position concept for web and app. Thin line vector illustration isolated on white background. EPS 10. 26960049 Light off, electric switch icon. Simple outline style. Power turn off button, toggle switch of position concept for web and app. Thin line vector illustration isolated on white background. EPS 10. 26960049](https://static.vecteezy.com/system/resources/previews/026/960/049/original/light-off-electric-switch-icon-simple-outline-style-power-turn-off-button-toggle-switch-of-position-concept-for-web-and-app-thin-line-illustration-isolated-on-white-background-eps-10-vector.jpg)