They do consume a tiny amount of power when turned off, yes. But the modern microelectronics used in these devices is very power efficient so they hardly uses any power at all. The same electronics also comes in other devices with batteries such as remote controllers to act as switches or sensors. And they usually come with tiny button cell batteries that last for months. So the power draw from a powered off light bulb is not going to be noticeable. It is only when you turn on the light that they consume their full power.
Latest Answers