Mekanism Lights
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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.
Screenshot 2026-07-29 150820-compressed.jpg
Thanatoros | Thana's Mekanism Lights
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Description
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.
Mekanism Lights Team
Owner
