# Exterior Lighting (LTS) Menu
Accessible through a single click of the LTS button, located on the upper right area of the CDU Keyboard.
Figure: Exterior Lights Menu 1 (Left), Exterior Lights Menu 2 (Right)
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
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.miltechsimulations.com/miltech-simulations-mv-22b-tiltrotor/aircraft-and-systems/aircraft-systems/center-control-display-unit-cdu/exterior-lighting-lts-menu.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.