Ultra Exterior Lighting
🟠 Updated over a year ago⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 1.8% endorsement rate — high engagement, a strong quality signal
- 🏆 #39 of 76 Visuals and Graphics mods in this game by downloads
📋 About This Mod
This mod is a follow on from my Ultra Interior Lighting mod but for the exterior Fallout 4 world.
This mod adds over 1500 shadow cast lights to physical lights in the Fallout 4 world including the Commonwealth, Far Harbor and Nuka World and generally improves all the lighting associated with physical lights including the ambient and reflective lighting bringing you a vastly improved lighting experience from what you encounter in the vanilla game.
Almost all the new shadow casts lights use a trigger box that swaps them to there non-shadow cast version at X distance from player depending on the location and other factors.
The use of trigger lights allows for better distance lighting and helps improve the performance by not having shadows rendered where there not really visible or at too far a distance to be visually noticeable.
As of version 1. 0 release the mod is around 80% complete, I will continue to work on the mod until I am happy with the final product!
This mod does not change any environmental lighting like weathers and weather image spaces and does not touch any vanilla settlement lights - settlements will be covered in an add-on for the mod at a later date.
For performance reasons this mod does not add shadow lights to all physical light sources in the game.
The mod does not break any pre-combines or pre-vis and has been thoroughly cleaned using FO4edit.
Performance will vary from system to system, please bare in mind that the mod brings many shadow casting lights to the exterior Fallout 4 world.
You may or may not occasionally see the flicking of the lights as they swap from non-shadow cast to shadow cast and vice-versa. I have done my best to ensure this issue is not very noticeable but having them swap is a far better option then not both for performance and visual reasons.
All screenshots have been taken whilst using the Darker Nights Mod and I highly recommend this mod to be used in conjunction with this one.
Any ENB, Reshade or SweetFX configuration that increases the contrast in the game.
Any weather mod or above that makes night weather darker than vanilla.
This mod requires the Nuka World, Far Harbor, Vault-Tec Workshop and the Automatron DLC's. There will not be a non-DLC version so please do not ask!
This mod is in no way compatible with any mod that changes existing vanilla physical light objects or light sources in the exterior world of the Commonwealth, Far Harbor and Nukaworld.
Mods that edit exterior cells should be placed above this one in your load unless they change pre-combines or pre-vis in which case compatibility is not guaranteed.
Any mod that allows scrapping of objects in cells other then vanilla settlements should be used with ext
Ultra Exterior Lighting enhances Fallout 4's exterior world by adding shadow-casting lights to numerous physical light sources, including those in Far Harbor and Nuka-World, with general lighting improvements for physical lights. A popular visual overhaul with over 4,500 endorsements.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Community favorite with 4,569 endorsements and over 251k downloads.
- Covers base game plus both major DLCs—Far Harbor and Nuka-World.
- Makes exterior lighting feel more dynamic and realistic with shadow casting.
⚠️ Cons
- May conflict with other lighting mods—you'll need to test load order yourself.
- Last updated September 2025—could be outdated if the game has received patches since then.
For Fallout 4 players who want a more immersive, visually striking wasteland without overhauling the entire lighting system. If you're tired of flat, static lights and want shadows that sell the atmosphere, this is for you. Skip if you prefer gameplay changes—this is purely cosmetic.
💡 Beginner Tips
- If you use a mod manager like Vortex or MO2, install this mod and let it sort your load order automatically—it's a simple ESP/ESM.
- For best results, place this mod after other lighting mods in your load order to ensure its changes take priority.
- Check the mod's posts section on Nexus for any user-reported conflicts with popular lighting overhauls like Vivid Weathers or NAC.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- Gargorias
- Version
- 1.04
- Downloads
- 251,474
- Endorsements
- 4,569
- Category
- Visuals and Graphics
- Created
- 10/19/2019
- Updated
- 9/5/2025
🔗 Required By 1 Mod
These mods list this mod as a dependency.
🧩 Commonly Used Together
Users add these mods to the same collections — a real compatibility signal, not an AI guess.
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.
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