Nitecore NU25 UL 400 vs UCO Firefly Lantern
Weight and specs compared for 2026 — and which one to choose.
Ultralight 48g headlamp with 400-lumen max output and dual red-light modes. USB-C fast charging, IP66 rated. Excellent balance of weight, brightness, and batter...
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Nitecore NU25 UL 400 vs UCO Firefly Lantern: which should you buy?
If saving weight is your priority, the Nitecore NU25 UL 400 wins — at 48 g it is 292 g (86%) lighter than the UCO Firefly Lantern (340 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.
See where both rank against everything else in this category on the lightest lighting page, or browse the full gear weight database.