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# SRAmbientLightSample

The amount of ambient light in the user’s environment.

```
class SRAmbientLightSample
```

## Overview

The [`ambientLightSensor`](/documentation/SensorKit/SRSensor/ambientLightSensor) sensor provides this class as its [`sample`](/documentation/SensorKit/SRFetchResult/sample) type.

## Topics

### Measuring light level

[`chromaticity`](/documentation/SensorKit/SRAmbientLightSample/chromaticity-swift.property)

A coordinate pair that describes the sample’s light brightness and tint.

[`SRAmbientLightSample.Chromaticity`](/documentation/SensorKit/SRAmbientLightSample/Chromaticity-swift.struct)

A coordinate pair that describes light brightness and tint.

[`lux`](/documentation/SensorKit/SRAmbientLightSample/lux)

An object that describes the sample’s luminous flux.

[`placement`](/documentation/SensorKit/SRAmbientLightSample/placement)

The light’s location relative to the sensor.

[`SRAmbientLightSample.SensorPlacement`](/documentation/SensorKit/SRAmbientLightSample/SensorPlacement)

Directional values that describe light-source location with respect to the sensor.


---

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