Black Diamond Spot 400-R Headlamp vs Nitecore NU40

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

Nitecore NU40 is the lighter option — 1 g lighter than the Black Diamond Spot 400-R Headlamp (1% less weight). If grams matter to you, that is the one to beat.

Spec	Black Diamond Spot 400-R Headlamp	Nitecore NU40
Weight	85 g · 0.085 kg · 0.19 lb	84 g · 0.084 kg · 0.19 lb
Brand	Black Diamond	Nitecore
Category	Lighting	Lighting

Black Diamond Spot 400-R Headlamp

85 g

Rechargeable 400-lumen headlamp with multiple modes including red night vision. USB-C charging with IPX8 waterproof rating.

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Nitecore NU40

84 g

1000-lumen rechargeable headlamp with dual light sources.

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Black Diamond Spot 400-R Headlamp vs Nitecore NU40: which should you buy?

If saving weight is your priority, the Nitecore NU40 wins — at 84 g it is 1 g (1%) lighter than the Black Diamond Spot 400-R Headlamp (85 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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