This is a 1.18.2 port of purogu's mod "It's Just Lights" (https://www.curseforge.com/minecraft/mc-mods/its-just-lights).
This mod currently adds 16 colored lamp blocks to Minecraft. There are two variants for each color: a pre-lit one that ignores redstone and one that is by default off and can be turned on via a redstone signal. More features are planned.
All credit goes to purogu for creating the original mod!
Operating under the GNUv3 Public License, as originally defined by purogu: https://github.com/ShibeTemple/itsjustlights/blob/1.18/LICENSE.