What to know
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You need to scan two flashlight fragments before the blueprint becomes available.
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Both fragments are close to your life pod, so you can get them early.
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The flashlight requires two titanium, one quartz, and one basic battery.
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Once crafted, it can be made at the fabricator and used to light dark underwater areas.
A flashlight is one of the first useful tools you can get in Subnautica 2, especially for exploring darker spaces underwater. The process is straightforward once you know where to look, because the required fragments are positioned near the life pod and the crafting recipe uses basic early-game materials.
Flashlight crafting details
Location details
The important locations are both very close to the life pod, which makes this an early and low-risk unlock.

One fragment is inside a coral formation to the east, while the second is directly beneath the life pod in a separate hole. That means you do not need a long trip or advanced equipment before getting the blueprint.
Materials needed for Flashlight
How to find the Flashlight fragments
Step 1
Go east from your life pod and look for a coral formation with an entrance hole in the center.

Inside the box there, you will find one flashlight fragment.

Step 2
Scan that fragment with your scanner so it counts toward the blueprint.

Step 3
Return to the area beneath your life pod and look for another hole.

Go inside and find the second fragment in a half-submerged box.

Step 4
Scan the second fragment as well.

Once both fragments are scanned, the full flashlight blueprint becomes available.
How to craft the Flashlight
Step 1
Go back to your life pod and use the fabricator.
Step 2
Make sure you have the required materials: two titanium, one quartz, and one basic battery.
Step 3
Select the flashlight from the crafting menu and build it.

Step 4
Equip it right away so you can use it while exploring dark areas.

The flashlight helps you navigate low-light areas more safely, which makes early exploration much easier. It is especially useful when you want better visibility without relying on stronger equipment later. Because the recipe is simple, it is one of the most practical tools to get early in the game.