BioLite Range 300 Headlamp vs Black Diamond Spot 400-R Headlamp
Weight and specs compared for 2026 — and which one to choose.
Ultra-compact 300-lumen USB-C rechargeable headlamp weighing just 1.8 oz (51g) with multiple brightness modes and warm/white LED options.
Full details →Rechargeable 400-lumen headlamp with multiple modes including red night vision. USB-C charging with IPX8 waterproof rating.
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BioLite Range 300 Headlamp vs Black Diamond Spot 400-R Headlamp: which should you buy?
If saving weight is your priority, the BioLite Range 300 Headlamp wins — at 51 g it is 34 g (40%) 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.