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Black Diamond Storm 500-R vs Petzl Nao RL
Weight and specs compared for 2026 — and which one to choose.
Black Diamond Storm 500-R is the lighter option — 34 g lighter than the Petzl Nao RL (23% less weight). If grams matter to you, that is the one to beat.
Black Diamond Storm 500-R
111 g
Rechargeable 500-lumen headlamp with waterproof design.
Full details →Petzl Nao RL
145 g
High-output 1500-lumen rechargeable headlamp with Reactive Lighting that auto-adjusts brightness to the surroundings.
Check price Full details →Black Diamond Storm 500-R vs Petzl Nao RL: which should you buy?
If saving weight is your priority, the Black Diamond Storm 500-R wins — at 111 g it is 34 g (23%) lighter than the Petzl Nao RL (145 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.