Black Diamond Deploy 325 vs UCO Firefly Lantern
Weight and specs compared for 2026 — and which one to choose.
Minimalist compact headlamp at just 40g. 325 lumen max output with single-button operation. Folds flat for easy stashing in hip belt pockets.
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Black Diamond Deploy 325 vs UCO Firefly Lantern: which should you buy?
If saving weight is your priority, the Black Diamond Deploy 325 wins — at 40 g it is 300 g (88%) 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.