This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
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
No specification.
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DeviceLightEvent | Chrome No support No | Edge No support ≤18 — 79 | Firefox
Full support
62
| IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android
Full support
62
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
value | Chrome No support No | Edge No support 13 — 79 | Firefox
Full support
62
| IE No support No | Opera No support No | Safari No support No | WebView Android No support No | Chrome Android No support No | Firefox Android
Full support
62
| Opera Android No support No | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- Non-standard. Expect poor cross-browser support.
- Non-standard. Expect poor cross-browser support.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.