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Fenix HL18R-T vs Nitecore NU40

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

Fenix HL18R-T is the lighter option — 42 g lighter than the Nitecore NU40 (50% less weight). If grams matter to you, that is the one to beat.
Spec Fenix HL18R-T Nitecore NU40
Weight 42 g · 0.042 kg · 0.09 lb 84 g · 0.084 kg · 0.19 lb
Brand Fenix Nitecore
Category Lighting Lighting
Fenix HL18R-T
42 g

Ultralight 500-lumen rechargeable headlamp for trail running.

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Nitecore NU40
84 g

1000-lumen rechargeable headlamp with dual light sources.

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Fenix HL18R-T vs Nitecore NU40: which should you buy?

If saving weight is your priority, the Fenix HL18R-T wins — at 42 g it is 42 g (50%) 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.

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