Light It Up

Light It Up

A small, lightweight Datapack that lets you craft Light Blocks that you can change the brightness of

by
8.8K Downloads
datapackfabricforgeneoforgequiltdecorationgame-mechanicsutility
Rent Server with this Mod

Screenshots

Light It Up Screenshot 1
Light It Up Screenshot 2
Light It Up Screenshot 3

About this Mod

Light It Up Datapack for Minecraft Java Edition

Make sure to install the Datapack Version that correctly matches your Minecraft Version or issues may arise.

📖 About

This Datapack adds craftable invisible Light Blocks that you can also adjust to any light level you would like.

This is perfect for trying to light up a base without ruining the asethetic of your build with torches or lanterns everywhere.

📝 Features

Stand inside a Light Block and type /trigger lightLevelAP set # to change the light level of the block.

Replace # with whatever light level you would like the block to become.

Keep in mind light levels only go from 0-15

gif crafting display

📂 Installation

Be sure to install this Datapack to the right location or it will not work properly, the correct file path is saves/[world]/datapacks

ℹ️ Extra Information

I now have a Ko-fi link located on the pack’s Modrinth page on the sidebar, but always remember donations are appreciated, but never required.

👾 Issues

Please report any issues to the Discord located in the Links tab, or on the Planet Minecraft page.

Available Versions

Version 1.4.0release
MC 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9fabric, forge, neoforge, quilt
October 2, 2025
Version 1.4.0release
MC 1.21.5, 1.21.6, 1.21.7, 1.21.8, 1.21.9datapack
October 2, 2025
Version 1.3.0release
MC 1.21.5, 1.21.6fabric, forge, neoforge, quilt
June 18, 2025
Version 1.3.0release
MC 1.21.5, 1.21.6datapack
June 17, 2025
Version 1.2.0release
MC 1.21.1, 1.21.4, 1.21.5fabric, forge, neoforge, quilt
December 19, 2024

How to Install Light It Up on Your Server

1

Order Server

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

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (1.21.9).

3

Install Mod

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

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

1.21.9, 1.21.8, 1.21.7 (+11 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Light It Up server crashes on startup – what to do?

Most common cause: wrong datapack 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 (1.21.9). You can switch loaders with one click in the panel.

Is Light It Up compatible with datapack and fabric and forge and neoforge and quilt?

Light It Up officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 1.21.9, 1.21.8, 1.21.7. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Light It Up – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Light It Up 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 Light It Up 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
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.91.21.81.21.71.21.61.21.51.21.41.21.11.211.20.41.20.3+4 more