It's a simple Flashlight 1.7.10 mod (from: https://www.planetminecraft.com/mod/flashlight-mod/) ported in to 1.12.2 and newer versions of Minecraft
It's add only a flashlight and battery.
Flashlight works in mainhand and offhand. It fits perfectly with the HardcoreDarkness mod:
New 3.0.0 version and above:

Old version 2.0.0:

Battery installation:
Take the battery to your offhand and the flashlight in your hand, then right-click
Crafting:

[ !! ] In my mods 1.12.2 version will be always supported at first, so sorry for long waiting time for updates to new versions [ !! ]
This mod can be used without problems on a public Minecraft server.
| Version | Minecraft | Loader | Download |
|---|---|---|---|
|
Flashlight 3.2.7 3.2.7 |
1.12.2
|
forge
|
Download |
|
[1.19.2] Flashlight v2.0.1 2.0.1 |
1.19.2
|
forge
|
Download |
|
[1.19] Flashlight v2.0.2 2.0.2 |
1.19
|
forge
|
Download |
|
[1.19] Flashlight v2.0.1 2.0.1 |
1.19
|
forge
|
Download |
|
[1.18.2] Flashlight v2.0.1 2.0.1 |
1.18.2
|
forge
|
Download |
|
[1.16.5] Flashlight v2.0.1 2.0.1 |
1.16.5
|
forge
|
Download |
|
[1.12.2] Flashlight v2.0.0 2.0.0 |
1.12.2
|
forge
|
Download |