JFlashlight

JFlashlight

Illuminate your world with a toggleable, photon-forked shader-powered flashlight. Creates a directional beam with 16 colors, volumetric dust, and multiplayer support.

by
277 Downloads
fabricgame-mechanicsutility
Rent Server with this Mod

Screenshots

First Person View
Multiplayer Support!
Colored Lights

About this Mod

Flashlight Mod

Add a fully featured flashlight to Minecraft with a realistic directional beam, 16 color options, and immersive volumetric dust particles.


Features

  • Toggle on/off by right-clicking with the flashlight in hand
  • 16 beam colors --> change anytime with /flashlight color set <color>
  • Realistic directional beam with a bright hotspot center and smooth edges
  • Volumetric glow --> subtle light brightening the air in the beam's path
  • Dust particles --> tiny animated particles drift through the beam, more indoors than outside
  • Dynamic fill lighting via LambDynamicLights --> lights up blocks around you even without shaders
  • Multiplayer support --> other players' beams are visible to you in real time

Requirements


Shader Setup

The beam is off by default. After installing the shader:

  1. Go to Video Settings → Shader Packs → Shader Options → Lighting
  2. Enable FLASHLIGHT to turn on the directional beam
  3. Optionally enable FLASHLIGHT_VOLUMETRIC for the glow and dust particles
  4. Optionally enable FLASHLIGHT_MULTIPLAYER to see other players' beams

Colors

white warm red orange yellow lime green teal cyan light_blue blue purple magenta pink gold uv

Change color with: /flashlight color set <color>
The color is saved when you toggle the flashlight off and restored when you turn it back on.


Multiplayer

The mod needs to be installed on the server and all clients. With everyone set up, you can see each other's beams, colors, and dynamic fill lighting in real time.


Links

Available Versions

JFlashlight 1.0.0release
MC 1.21.1fabric
April 14, 2026

How to Install JFlashlight on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "JFlashlight". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

JFlashlight server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.

Is JFlashlight compatible with fabric?

JFlashlight officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with JFlashlight – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if JFlashlight consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install JFlashlight with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.1