BLACK DIAMOND Cosmo 350 Headlamp | 350 Lumens, Dual Power, Waterproof | Graphite

Meet the BLACK DIAMOND Cosmo 350 Headlamp in a sleek graphite finish—a compact lighting solution built for night-time adventures. Whether you’re setting up camp after dusk, navigating a rocky trail, or checking gear under a tent, this headlamp aims to deliver steady, hands-free light with thoughtful versatility. Its balanced design prioritizes comfort, reliability, and quick access to the right brightness when you need it most, so you can focus on the task at hand rather than searching for a switch.

Power and Performance

With a maximum output of 350 lumens, the Cosmo 350 provides a bright, evenly distributed beam that helps you identify terrain and read maps without harsh hotspots. It offers flexible power options to suit different trips. You can use standard 3x AAA batteries (included) for quick setup on the go, or swap in the rechargeable BD 1500 Li-ion battery for longer sessions when charging options are limited.

• 3x AAA batteries included for immediate use
• Optional BD 1500 Li-ion rechargeable battery for extended outings

Versatile Lighting Modes

The Cosmo 350 features a range of modes that adapt to tasks and surroundings. Dim lighting is ideal for close work without washing out the surroundings, while a dedicated red night-vision mode preserves night adaptation during late-night tasks. A simple, intuitive button interface lets you switch modes and adjust brightness on the fly.

• Dimming for close-up tasks or trail navigation
• Strobe for signaling or emergency use
• Red night-vision mode to protect your night-adjusted vision

Durability and Weather Readiness

Designed to handle outdoor conditions, the Cosmo 350 carries IP67 waterproof protection, guarding against rain, snow, and splashes, with submersion resilience up to 1 meter for 30 minutes. An IPX8 test note indicates operation under deeper water exposure in controlled scenarios. If submerged, water may enter the battery compartment and the unit should be dried completely after use. This combination supports reliability in wet or muddy environments and changing weather.

Real-life Use and Scenarios

In real-world sessions, the Cosmo 350 supports a hands-free experience without bulky headlamps slowing you down. It’s well suited for camp setup, early morning starts, late-night trail walks, and quick gear checks after sunset. The lightweight build helps reduce fatigue, while the secure fit stays in place during movement across uneven terrain.

• Night hikes and campsite routines
• Early morning runs and late-day treks
• Emergency repairs or gear checks in low light

Why Consider the Cosmo 350

This headlamp offers a thoughtful balance of brightness, power options, and durability without promising guaranteed outcomes. It presents a set of possibilities—consistent light when you need it, flexible charging options to suit your trip, and modes that adapt to different tasks—so you can plan with confidence and stay focused on your outdoor goals.