Slab Light

⭐ — (2 endorsements) 📥 245 downloads 📌 v2.0.0 📅 5/28/2026
🟡 Updated this year

By lefthandedleaf · decoration

⬇ Download Mod Source: Modrinth ↗ 📅 Updated: 8/13/2026 📅 Created: 5/28/2026
⚠️ Install Order · 2 steps
1🛠️ Forge — Minecraft Forge (mod loader) Download ↗
2🛠️ Fabric — Fabric Loader Download ↗

Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.

🔍 Analysis

  • 🏆 #195 of 211 decoration mods in this game by downloads

📋 About This Mod

**Slab Light** is a small Fabric mod that changes how light interacts with slabs and stairs in Java to match Bedrock behavior. In vanilla Java, slabs and stairs have directional light opacity - their solid faces block light from passing through. For example, a torch placed below a bottom slab won't light up the space above it, because the slab's solid bottom face blocks upward light propagation. In Bedrock, slabs and stairs don't block light at all - light passes freely through them in every direction. This mod removes that directional restriction for single slabs and stairs, so light behaves the same way it does on Bedrock. Double slabs (full blocks) are unaffected. Here's what's new in 1.2.0: Three new commands (require op level 2): /slablight on — enables the mod, relights chunks around all online players /slablight off — disables the mod, relights to restore vanilla lighting /slablight status — shows whether it's currently on or off _**Requires Fabric API.**_ **Known Issues:** Removing the mod from an existing world will not revert lighting on already-built structures — light values are baked into the world save by Minecraft. Only newly placed blocks will revert to vanilla Java behaviour. If you want to support my work: https://account.venmo.com/u/lefthandedleaf https://buymeacoffee.com/lefthandedleaf

Slab Light is a small Fabric mod that changes how light interacts with slabs and stairs in Java to match Bedrock behavior.

In vanilla Java, slabs and stairs have directional light opacity - their solid faces block light from passing through. For example, a torch placed below a bottom slab won't light up the space above it, because the slab's solid bottom face blocks upward light propagation.

In Bedrock, slabs and stairs don't block light at all - light passes freely through them in every direction.

This mod removes that directional restriction for single slabs and stairs, so light behaves the same way it does on Bedrock. Double slabs (full blocks) are unaffected.

Here's what's new in 1. 2. 0: Three new commands (require op level 2):

/slablight on — enables the mod, relights chunks around all online players

/slablight off — disables the mod, relights to restore vanilla lighting

/slablight status — shows whether it's currently on or off

_Requires Fabric API._

Known Issues:

Removing the mod from an existing world will not revert lighting on already-built structures — light values are baked into the world save by Minecraft. Only newly placed blocks will revert to vanilla Java behaviour.

If you want to support my work:

https://account.venmo.com/u/lefthandedleaf https://buymeacoffee.com/lefthandedleaf

🤖 AI-enhanced — based on mod data

📊 Mod Details

Game
Minecraft Mods
Author
lefthandedleaf
Version
2.0.0
Downloads
245
Endorsements
2
Category
decoration
Created
5/28/2026
Updated
8/13/2026
Game Versions
26.2
Tags
decoration, game-mechanics

🔧 How to Install Minecraft Mods Mods

Download from Modrinth. Use Prism Launcher or drop into your mods folder.

📖 Full step-by-step install guide for Minecraft Mods →

Visit the official mod page for specific installation instructions for this mod.

🎮 Need cheat codes or console commands? Check ur gaming wiki for Minecraft Mods commands, item IDs, and more.

❓ Frequently Asked Questions

Which Minecraft Mods versions does Slab Light support?

The author lists 26.2. Other versions may work but are untested by the author.

What is the latest version of Slab Light?

Version 2.0.0, published 2026-08-13 with 245 downloads recorded at the source.

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