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Black Diamond Spot 400 Headlamp — Specs & Analysis
Manufacturer specifications, compared against every other lighting in our database. We do not test gear in the field — we measure, verify, and compare.
The Spot 400 is a reliable 400-lumen headlamp with a PowerTap feature that toggles between full and dimmed output with a tap to the housing. Runs on three AAAs or a rechargeable BD battery pack, and the IPX8 waterproof rating handles downpours without worry.
Who Is the Black Diamond Spot 400 Headlamp Best For?
Budget-friendly headlamp for camp use and moderate trail navigation. If that describes your riding style, the Spot 400 Headlamp should be at the top of your shortlist. It sits in the Lighting category alongside 16 other products we track.
How It Compares
At 72g and $60, the Spot 400 Headlamp is 27g heavier than the lightest option in this category (the Nitecore NU25 UL Headlamp at 45g). The most budget-friendly option is the Goal Zero Crush Light Solar Lantern at $30.
The price-to-weight ratio comes in at $83 per 100g — a premium price point, but you're paying for quality, materials, and design that justify the investment for serious bikepackers.
What We Like
- +PowerTap dimming is intuitive and fast
- +IPX8 waterproof rating for all-weather reliability
- +Red and green night vision modes
Watch Out For
- −400 lumens is on the low side for trail navigation
- −AAA batteries add up in cost over time
- −Beam distance is modest at 100 meters
The Bottom Line
We haven't scored the Black Diamond Spot 400 Headlamp, and neither has anyone else we can cite. It's here for its verified specifications and dimensions, which is what the fit tools run on — a score is an editorial judgement, and we don't hand one out until someone has a basis for it. What this page can tell you is measured: 72g, $60, and how both sit against every other lighting product we track.
Price checked against the manufacturer on 18 August 2026 — see the source.
Specifications and dimensions come from the sources listed above. Where a page draws on first-hand riding, it says so.
How it compares
Against the 17 lighting products we hold published specs for.
At 72g the Spot 400 Headlamp is lighter than 13 of 16 alternatives we track, which makes it among the lightest we track. The category median is 110g.
At $60 it undercuts 10 of 16 of them, against a median of $70. That works out at $83 per 100g — above the $73 median for lighting products.
Weight and price come from published specifications. Cost per 100g is a blunt measure — it rewards light gear and says nothing about durability or whether the thing works — so treat it as one input, not a verdict.
More in Lighting
Headlights, taillights, and camp lanterns for visibility and safety.