Cosmo 350-R Headlamp

Engineered for environmentally conscious alpinists, trail runners, and expedition personnel navigating technical mountain terrain, the Black Diamond Cosmo 350-R Headlamp replaces disposable batteries with a high-capacity Micro-USB rechargeable power cell. Featuring an IP67 dustproof and waterproof casing, this compact headlamp operates reliably through heavy monsoon downpours, sub-zero ridge conditions, and humid trail environments. Its dual-lens optical configuration provides distance spotlighting up to 64 meters along with wide peripheral floodlighting, ensuring complete visual coverage during early morning alpine starts and late evening camp setups across Himalayan routes. Visit our website, Makalu e-traders, or you can visit our physical store in Thamel. 

Cosmo 350-R Headlamp Features

• Integrated 1500 mAh Li-ion Battery: Built-in rechargeable power source charged via a sealed Micro-USB port.

• 350-Lumen Max Output: Multifaceted optical lens configuration projecting up to 350 lumens of focused light.

• Red Night-Vision LED: Dedicated red light mode with dimming and strobe settings to preserve dark adaptation.

• Recycled Repreve Elastic Strap: Breathable, next-to-skin elastic headband constructed from recycled plastic bottles.

• Multi-LED Battery Meter: Integrated LED indicator displaying real-time charge status (Green/Yellow/Red).

• Digital Lockout Mode: Electronic button lock preventing accidental activation and power loss inside gear packs.

• Tiltable Housing: Adjustable hinge mechanism enabling exact vertical beam positioning on technical trails.

Cosmo 350-R Headlamp Technical Specifications

Physical Dimensions & Weight

• Total Weight: 75 g (2.65 oz)

• Housing Profile: Compact low-profile tiltable enclosure

• Headband Material: Repreve recycled elastic webbing

Lighting Performance & Optics

• Maximum Light Output: 350 Lumens

• Medium Light Output: 175 Lumens

• Low Light Output: 6 Lumens

• Maximum Beam Distance (High): 64 m

• Medium Beam Distance: 45 m

• Low Beam Distance: 10 m

• Max Burn Time (High/Max Output): 5 hours (ANSI FL1 Standard)

• Max Burn Time (Medium Output): 10 hours

• Max Burn Time (Low Output): 225 hours

Electrical, Material & Compliance

• Battery Type: Internal 1500 mAh Lithium-ion rechargeable cell

• Charging Interface: Micro-USB port

• Charge Time: Approx. 3 hours from 0% to 100%

• Operating Temperature Range: -17°C to +43°C (0°F to 110°F)

• Water & Dust Protection Rating: IP67 (Dustproof + Submersible to 1m for 30 minutes)

• Compliance & Standards: ANSI FL-1 Standard, CE Certified, RoHS Directive 2011/65/EU compliant