The Black Diamond Cosmo headlamp includes a dedicated Red LED with its own adjustable brightness and strobe settings, so checking a map or digging through a pack at night doesn't mean blasting full white light into already-adjusted eyes. A dual-button interface switches between white and red light without cycling through unwanted modes first. Dual-Fuel compatibility runs the Cosmo on three AAAs or an optional BD 1500 battery, which charges directly in the headlamp over USB-C. What Our Gearhead(R) Experts Are Saying:"I heard something moving near camp and flipped straight to the red light instead of blinding myself and everyone else with white beam. I could actually see what was out there instead of just a wall of glare."