Nitecore NU40 vs Petzl Iko Core Headlamp
Weight and specs compared for 2026 — and which one to choose.
500-lumen headlamp with rechargeable CORE battery via USB. Slim profile with a flexible headband. Red lighting mode for night vision. 80g including battery.
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Nitecore NU40 vs Petzl Iko Core Headlamp: which should you buy?
If saving weight is your priority, the Petzl Iko Core Headlamp wins — at 80 g it is 4 g (5%) lighter than the Nitecore NU40 (84 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.