How do you get Lighten Up in Minecraft?

Find a copper bulb in a trial chamber, or craft one from 3 copper blocks, a blaze rod and redstone dust.

What kind of advancement is Lighten Up?

Lighten Up is a Adventure tab advancement in Java Edition.

Lighten Up

Tab: AdventureDifficulty: Easy

Quick answer: Scrape a Copper Bulb with an Axe to make it brighter

Tree path: Adventure › Minecraft: Trial(s) Edition › Lighten Up (advancements are independent: they can be completed in any order; the tree only guides progression)

Tree parent: Minecraft: Trial(s) Edition

Advancements are exclusive to Java Edition. The Bedrock Edition equivalent is achievements, which have different objectives.

How to get Lighten Up

Find a copper bulb in a trial chamber, or craft one from 3 copper blocks, a blaze rod and redstone dust.
Let the bulb oxidize until it is at least exposed (orange with green spots) while it is lit.
Power the bulb with redstone so it is lit; a lever or redstone torch works.
Right-click the lit, oxidized bulb with any axe to scrape off oxidation. The light gets brighter and the advancement unlocks.

Tips

Copper bulbs dim as they oxidize, from light level 15 down to 4. Trial chambers are full of oxidized bulbs already, so scraping one there is the zero-crafting route.

More guides from this tab (Adventure): Adventure Heart Transplanter Voluntary Exile Country Lode, Take Me Home Is It a Bird?Monster Hunter