Shroomlight

Shroomlights are light-emitting blocks in Minecraft that naturally generate on the tops of huge fungi in the Nether's crimson and warped forests. They are not crafted but rather harvested. Shroomlights emit a light level of 15, which is the highest light level available, making them a very useful light source. Unlike glowstone, shroomlights allow redstone signals to pass through them. Players can break shroomlights with any tool, although a hoe is the fastest method. When broken, they always drop themselves as an item. Additionally, shroomlights can be placed in a composter, with a 65% chance to increase the compost level. Shroomlights are valuable for both building and lighting, making them a desirable resource for Minecraft players exploring the Nether.