This is a simple datapack that allows survival players to craft minecraft:light block items.
Glowstone Dust + Glass Bottle
Glow Ink + Glass Bottle
Torch + Glass Bottle
This datapack only adds the 3 shapeless recipes, but the vanilla behavior of lights allow you to:
Change the light level - simply right-click the placed light block with a light item in your hand. This does not consume the item Replace a light block with any other block. (Light blocks act like air, just place any other block on the space they inhabit. Light blocks are invisible in survival mode, but you can still see their block outline when you are holding light blocks. Light blocks can be waterlogged.
More information on light blocks: https://minecraft.fandom.com/wiki/Light_Block