Illuminate your adventures with the Black Diamond Cosmo 350, a high-performance headlamp that delivers a powerful 350 lumens in a compact, watertight design. Ideal for both urban explorations and overnight wilderness trips, this headlamp features innovative Dual-Fuel technology and an ergonomic, low-profile body for enhanced balance and comfort. The updated user interface includes a second switch for effortless lens selection, while improved optical efficiency offers brighter light and extended battery life. Its watertight construction ensures reliable performance in all weather conditions, whether you're biking through a storm or hiking through heavy rain.Black Diamond Cosmo 350 Features: Dual-Fuel either rechargeable Lithium-Ion BD 1500 battery or Alkaline cells (included) Powerful 350 Lumens on Maximum Setting Red Night Vision Has Dimming and Strobe Modes Compact, Low-Profile Design Uses Three AAA Batteries Settings Include: Proximity and Distance Modes Dimming Strobe Red Night-Vision Lock Mode Multifaceted Optical Lens Design IPX8: Waterproof-Tested 1.1 Meters Underwater for 30 Minutes