DeviceLightEvent

The DeviceLightEvent provides web developers with information from photo sensors or similiar detectors about ambient light levels near the device. For example this may be useful to adjust the screen's brightness based on the current ambient light level in order to save energy or provide better readability.

Properties

DeviceLightEvent.value

The level of the ambient light in lux.

Example

window.addEventListener('devicelight', function(event) {
  console.log(event.value);
});

Specifications

Browser compatibilityUpdate compatibility data on GitHub

See also

• devicelight
• Using Light Events