---
title: AVCaptureDevice.FlashMode.on
framework: avfoundation
role: symbol
role_heading: Case
path: avfoundation/avcapturedevice/flashmode-swift.enum/on
---

# AVCaptureDevice.FlashMode.on

A mode that indicates the flash is on.

## Declaration

```swift
case on
```

## See Also

### Flash modes

- [AVCaptureDevice.FlashMode.off](avfoundation/avcapturedevice/flashmode-swift.enum/off.md)
- [AVCaptureDevice.FlashMode.auto](avfoundation/avcapturedevice/flashmode-swift.enum/auto.md)