# Exterior Lighting (LTS) Menu

Accessible through a single click of the LTS button, located on the upper right area of the CDU Keyboard.

<figure><img src="https://2097992004-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FPEYB5ha9hkXpOBVaiED0%2Fuploads%2FAxHDsxfkHufX5uMAWiul%2Fimage.png?alt=media&#x26;token=8856f2de-3ab1-4cf7-9814-8b3956f483ca" alt=""><figcaption><p>Figure: Exterior Lights Menu 1 (Left), Exterior Lights Menu 2 (Right)</p></figcaption></figure>

1. **Master CTRL:** Master Control off/on. Master switch for all exterior lighting. **Must be ON** (clicking the arrow button) for any exterior lighting to function.
2. **Top Strobe:** Controls the top Strobe light. Off / Normal / Navigation Modes
3. **Bottom Strobe:** Controls the bottom Strobe light. Off / On
4. **Position Lights:** Controls the Position Lights. Off / Both / Nacelles Only / Tail Only Modes
5. **Position Lights Brightness:** Bright / Dim (Position Lights must be “Both”, “NAC” or “TAIL”)
6. **Position Lights Flash:** Flashing / Steady (Position Lights must be “Both”, “NAC” or “TAIL”)
7. **Exterior Lighting Menu Selector**
8. **Propeller Tip Lights:** Controls the green lights at the tip of the propellers. Off / Bottom Lights / Top Lights
9. **Formation Level (0-10):** Formation Light Level of Brightness from 0 - 10
10. **Landing Gear Lights:** Controls the Landing Gear Lights. Off / Auto