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Apple's iOS 17 has a feature, Visual Look Up, that will explain what those lights and symbols are all about. It's coming this fall. Dashboard Warning Lights Decoded by iPhone – New iOS 17 Feature
In iOS 18 and iPadOS 18, a complete redesign occurred. [12] The new Control Center features new design featuring more circular buttons and controls, and has multiple pages of different classes of controls, separating controls for connectivity, media, home, a user's favorite controls, and even an option to create new groups or pages personalized ...
Switching the thyristor on earlier in each half cycle gives a higher output voltage and brighter lights. Dimmers based on insulated-gate bipolar transistors (IGBTs) do away with most of the noise present in TRIACs by chopping off the falling side of the sine wave. These circuits are called trailing-edge dimmers or reverse phase dimming.
Adjusting the brightness of light emitted by a light source is then merely a matter of setting at what voltage (or phase) in the AC half-cycle the dimmer begins to provide electric current to the light source (e.g. by using an electronic switch such as a triac). In this case the PWM duty cycle is the ratio of the conduction time to the duration ...
Therefore, a significant reduction of heat output will occur with a relatively small reduction in voltage. An incandescent lamp will dim due to lower heat creation in the filament, as well as lower conversion of heat to light. Generally speaking, no damage will occur but functionality will be impaired.
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This can be avoided by unplugging the appliance or using a power strip and using the switch on the power strip to cut all power to the appliance." [3] Standby power used by older devices can be as high as 10–15 W per device, [4] while a modern HD LCD television may use less than 1 W in standby mode. Some appliances use no energy when turned off.