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BioLite Range 500 Headlamp vs Nitecore NU25 UL Headlamp

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

Nitecore NU25 UL Headlamp is the lighter option — 30 g lighter than the BioLite Range 500 Headlamp (40% less weight). If grams matter to you, that is the one to beat.
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Spec BioLite Range 500 Headlamp Nitecore NU25 UL Headlamp
Weight 75 g · 0.075 kg · 0.17 lb 45 g · 0.045 kg · 0.10 lb
Brand BioLite Nitecore
Category Lighting Lighting
BioLite Range 500 Headlamp
75 g

Ultra-lightweight 500 lumen headlamp with 3D SlimFit design, weighs just 75g with integrated rechargeable battery.

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Nitecore NU25 UL Headlamp
45 g

Ultralight USB-C rechargeable headlamp with 400-lumen output and dual red-light modes. Weighs less than three AA batteries.

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BioLite Range 500 Headlamp vs Nitecore NU25 UL Headlamp: which should you buy?

If saving weight is your priority, the Nitecore NU25 UL Headlamp wins — at 45 g it is 30 g (40%) lighter than the BioLite Range 500 Headlamp (75 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