CurseForge · Minecraft mod
Mekanism Lights
If you hate putting light source every 3 blocks this mod is for you. This mod adds mekanism style lights with light range depending on tier.
Quick answer
Which Mekanism Lights release should I use?
Mekanism Lights Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1 targets 1.21.1 with NeoForge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Mekanism Lights required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Mekanism Lights Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1 need?
Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1. Change the file and its required mods may change too.
Install Mekanism first. We found matching files for this game-version and loader setup. 23 come through another mod in the chain.
23 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Mekanism Lights without breaking your instance.
Built for Mekanism Lights Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Mekanism first. We found matching files for this game-version and loader setup. 23 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1. It opens that exact file at the source.
About this project
What does Mekanism Lights add?
Mekanism Lights
If you hate putting a light source every 3 blocks, this mod is for you. It adds Mekanism style lights that light up a whole area around them, with range depending on tier, and a Light Multiblock that lights an even bigger area depending on its size.
Standard Light
Four tiers, crafted from the High Wattage Bulb:
| Tier | Range | Power use | Energy buffer |
|---|---|---|---|
| Basic | 8 | 120 J/t | 10 kJ |
| Advanced | 12 | 240 J/t | 40 kJ |
| Elite | 16 | 360 J/t | 90 kJ |
| Ultimate | 20 | 480 J/t | 160 kJ |
- Accepts Mekanism Energy Upgrades: with all 8 installed it uses a tenth of power
- Upgrade it in place with Mekanism Tier Installers. It keeps its stored energy, the battery in its slot, on/off state, redstone mode, security and upgrades
- Turn it on/off by sneak right click with an empty hand (respects Mekanism security), or with redstone
- Light only reaches places it should, it doesnt go through walls. Grass, flowers, torches, rails, etc. don't block it
Light Multiblock
Box from 3x3x3 up to 9x9x9 that lights a whole area.
- Floor: Light Casing, with at least one High Wattage Input Port anywhere on the shell to power it
- Walls and top: Mekanism Structural Glass
- Inside: completely filled with High Density LED Arrays
| Size | Max range |
|---|---|
| 3x3x3 | 32 |
| 5x5x5 | 64 |
| 7x7x7 | 96 |
| 9x9x9 | 128 |
- Set the range in the GUI: left click the buttons to step by 1, right click to step by 16
- Energy use and the energy buffer grow with the range, the LED count and the size of the structure
- Sneak right click any casing with an empty hand to turn it on/off, redstone works on any block of the shell
- The GUI shows the size, LED count, range, if its on or off
How the light works
Lights place invisible light blocks every few blocks inside their range, only in air and only where there is a line of sight back to the light. The spacing and how often the light updates can be configured in config.
- Light blocks dont show up on maps, cant be pushed by pistons, don't stop saplings from growing, and are never placed next to obsidian, so they cant block a nether portal
- Light blocks whose light is gone remove themselves within a minute or two after the area loads
- tags:
thanasmekanismlights:light_passable,thanasmekanismlights:light_blocking,thanasmekanismlights:light_avoid
Config
Usually (%appdata% -> .minecraft -> config -> thanasmekanismlightsconfig.properties)
| Setting | Default | What it does |
|---|---|---|
| STANDARD_LIGHT_ENERGY_PER_TICK | 120 | Standard Light power use in Joules per tick, times the tier (Basic 1x, Ultimate 4x) |
| BASIC_STANDARD_LIGHT_RANGE | 8 | Range of the Basic Standard Light |
| ADVANCED_STANDARD_LIGHT_RANGE | 12 | Range of the Advanced Standard Light |
| ELITE_STANDARD_LIGHT_RANGE | 16 | Range of the Elite Standard Light |
| ULTIMATE_STANDARD_LIGHT_RANGE | 20 | Range of the Ultimate Standard Light |
| RECALC_LIGHT_SWITCH | false | Recalculate light only when the light is switched on (much better performance) |
| RECALC_TICK | 10 | Ticks between light updates (more = better performance, slower light changes) |
| SPACER | 2 | Blocks between light blocks (bigger = bigger gaps, worse coverage) |
| MULTIBLOCK_RECALC_TICK | 10 | Ticks between multiblock light updates (raise this first if a big multiblock causes lag) |
| MULTIBLOCK_SPACER | 2 | Blocks between the multiblock's light blocks |
| MULTIBLOCK_MAX_RANGE | 128 | Hard cap on multiblock range |
| MULTIBLOCK_RANGE_PER_SIZE_STEP | 16 | Range per size step, a box of side S reaches (S - 1) times this |
| MULTIBLOCK_ENERGY_BASE_PER_RANGE | 50 | Multiblock Joules per tick per point of range |
| MULTIBLOCK_ENERGY_PER_LED_PER_RANGE | 1 | Extra Joules per tick per point of range, per LED array |
| MULTIBLOCK_ENERGY_PER_VOLUME | 50000 | Multiblock energy buffer per block of its volume |
| MULTIBLOCK_AMBIENT_SOUND | true | Quiet hum from the multiblock while it runs |
Changing a range or the spacing in the config also changes lights that are already placed. Updating from 1.4: BASIC_LIGHT_CONSUMPTION is no longer used. If you changed it, put the same number into STANDARD_LIGHT_ENERGY_PER_TICK.
FAQ
I have an issue / bug / crash / report / request, where can I contact you about it ?
Use my Discord server, you can join it here -> https://discord.gg/y366spsSjv
Can I put this mod into my modpack ?
Yes you can. Would appreciate mention of mod/author/link in modpacks description/credits.
Does this mod support servers ?
Yes it does.
Project description from CurseForge.
Pick your setup
Mekanism Lights by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.21.1
1 loader build1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Mekanism Lights versions and loaders
Thana's Mekanism Lights 1.5.0 - NEOFORGE 1.21.1
thanasmekanismlights-NEOFORGE-1.5.0-1.21.1.jar
12 Oct 2026
Thana's Mekanism Lights 1.5.0 - FORGE 1.20.1
thanasmekanismlights-FORGE-1.5.0-1.20.1.jar
12 Oct 2026
Thana's Mekanism Lights 1.4.1 - NEOFORGE 1.21.1
thanasmekanismlights-NEOFORGE-1.4.1-1.21.1.jar
16 Aug 2026
Thana's Mekanism Lights 1.4.1 - FORGE 1.20.1
thanasmekanismlights-FORGE-1.4.1-1.20.1.jar
16 Aug 2026
ThanasMekanismLights 1.4.0 - NEOFORGE 1.21.1
thanasmekanismlights-NEOFORGE-1.4.0-1.21.1.jar
29 Jul 2026
ThanasMekanismLights 1.4.0 - FORGE 1.20.1
thanasmekanismlights-FORGE-1.4.0-1.20.1.jar
29 Jul 2026
thanasmekanismlights-[FORGE]-1.3.2-1.20.1.jar
3 Jul 2026
thanasmekanismlights-[NEOFORGE]-1.3.2-1.21.1.jar
3 Jul 2026
thanasmekanismlights-[FORGE]-1.3.1-1.20.1.jar
27 Jun 2026
thanasmekanismlights-[NEOFORGE]-1.3.1-1.21.1.jar
25 Jun 2026
thanasmekanismlights-[NEOFORGE]-1.3.0-1.21.1.jar
20 Jun 2026
thanasmekanismlights-[NEOFORGE]-1.2.1-1.21.1.jar
4 Dec 2025
Looking for an older file? The official CurseForge project page is in Resources.