# Sandbox.CameraEffectSystem.BaseEffect.Duration

```csharp
float Duration { get; set; }
```

Seconds the effect runs. Zero or less runs until [Sandbox.CameraEffectSystem.BaseEffect.Stop](/api/Sandbox.CameraEffectSystem.BaseEffect/Stop).

Declared in [Sandbox.CameraEffectSystem.BaseEffect](/api/Sandbox.CameraEffectSystem.BaseEffect).
Assembly: `Sandbox.Engine`.