Subnautica 2 Flashlight Guide — How to Craft & Use
How to craft and use the Flashlight in Subnautica 2. Crafting recipe, fragment locations, and tips for exploring dark areas.
Flashlight Overview
The most essential tool for dark exploration
The Flashlight illuminates dark areas during night exploration and inside caves. Essential for navigation when visibility drops.
How to Craft
Craft at Fabricator — available from the start
| Material | Amount |
|---|---|
| Basic Battery | x1 |
| Copper | x1 |
Tips
Equip to hotbar for quick toggle
Craft early — before your first night
Toggle with hotbar slot for on/off control
Fragment Locations
Found at shallow wrecks and debris fields
Scan at any Wreck site with Scanner tool
The Bottom Line: Flashlight — How to Craft & Use is one of those crafts that looks simple on paper but becomes a bottleneck if you don’t plan ahead. I’ve been in the situation where I needed one more and had to swim back across three biomes to get it. Build extras. Store them in a locker. Future you — the one who’s 200 meters deep with a Leviathan on your tail — will be very grateful.
Frequently Asked Questions
How do I craft the Flashlight?
Basic Battery x1, Copper x1. Available from the start at the Fabricator. No fragment scanning required.
How long does the Flashlight battery last?
Each battery lasts several minutes of continuous use. Carry spare batteries and swap in the field with R / Up D-pad.
Is the Flashlight necessary?
Yes — essential for night exploration and dark caves. The Scanner is more important early on, but Flashlight is critical for nighttime.
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