Black Diamond Spot 400 Headlamp

REI gave it an Editor's Choice Award and called it the "best all-around lamp for just about any activity." Over 200 five-star ratings on REI and thousands more on Amazon back that up. What makes it worth buying? It gives you 400 lumens, and the beam reaches up to 100 meters. That’s bright enough for dark trails and even cave use. It’s also IPX8 waterproof. So it can handle full submersion in water up to 1.1 meters for 30 minutes without damage.

On top of that, PowerTap lets you change brightness instantly with just one tap. No fumbling with buttons in the dark. Dual-fuel design runs on standard AAA batteries. It is available anywhere in the world or the BD 1500 rechargeable Li-ion pack sold separately. Battery life stretches to 200 hours on low mode, matching the best headlamps tested by Treeline Review in 2026.

For instance, one Amazon buyer shared using it while caving: Went caving with it after replacing an Amazon headlamp that burned out, and I easily had the brightest headlamp of the group.

Is it Worth Buying? Yes, at around $40–$50, it delivers specs that match headlamps priced twice as high. Dual-fuel design makes it dependable on long international trips. One of the safest headlamp purchases available in this price range.