← Gear database

Black Diamond Deploy 325 Headlamp vs Nitecore NU27 Headlamp

Weight and specs compared for 2026 — and which one to choose.

Black Diamond Deploy 325 Headlamp is the lighter option — 17 g lighter than the Nitecore NU27 Headlamp (30% less weight). If grams matter to you, that is the one to beat.
Spec Black Diamond Deploy 325 Headlamp Nitecore NU27 Headlamp
Weight 40 g · 0.040 kg · 0.09 lb 57 g · 0.057 kg · 0.13 lb
Brand Black Diamond Nitecore
Category Lighting Lighting
Black Diamond Deploy 325 Headlamp
40 g

Ultra-compact 40g headlamp with 325-lumen output. Folds flat for easy storage in a pocket or pack lid. USB-C rechargeable. Best-in-class weight for a capable tr...

Check price Full details →
Nitecore NU27 Headlamp
57 g

USB-C rechargeable headlamp delivering 600 lumens at just 57g. Best brightness-to-weight ratio in the ultralight category. Includes front and rear red safety li...

Check price Full details →

Black Diamond Deploy 325 Headlamp vs Nitecore NU27 Headlamp: which should you buy?

If saving weight is your priority, the Black Diamond Deploy 325 Headlamp wins — at 40 g it is 17 g (30%) lighter than the Nitecore NU27 Headlamp (57 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.

More lighting comparisons