![mosfet - How to create a circuit to turn off LED when switch is "ON" and turn on when "OFF" - Electrical Engineering Stack Exchange mosfet - How to create a circuit to turn off LED when switch is "ON" and turn on when "OFF" - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/Cns7Y.png)
mosfet - How to create a circuit to turn off LED when switch is "ON" and turn on when "OFF" - Electrical Engineering Stack Exchange
![visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange](https://i.stack.imgur.com/HJcxo.jpg)
visible light - Is there any relation between turn on voltage of LED and the colour emitted? - Physics Stack Exchange
![I need my led's to stop with a push button. Help please. - Jobs and Paid Consultancy - Arduino Forum I need my led's to stop with a push button. Help please. - Jobs and Paid Consultancy - Arduino Forum](https://aws1.discourse-cdn.com/arduino/original/4X/e/7/a/e7ae203efc08ae4e779eaa97063493ffe820fa6b.jpeg)
I need my led's to stop with a push button. Help please. - Jobs and Paid Consultancy - Arduino Forum
![bjt - How to replace a green LED with a red one in a simple transistor switch? - Electrical Engineering Stack Exchange bjt - How to replace a green LED with a red one in a simple transistor switch? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/0gjS0.png)