Waterproof Lamp

 is a refined material used in crafting.

Obtaining
can be crafted using the Worktable:

Usage
is used in crafting or requested in commissions.

Commission
is occasionally requested on the Commissions Board in a Rank S commission.

Craft
is a required ingredient when crafting the following items:

Recycle
can be placed in the Recycle Machine to produce the following items: