Klarus H1A Aloy 550 Lm Head Lamp AA BatteryLightweight and heat resistant! Three light sources: Long range, floodlight and red Fade in and fade out function on turbo mode protects user eyes 90 degree adjustable angle Lock out function to prevent accidental activation Display remaining battery capacity Headband includes sweatband for added comfort Compatible with AA alkaline NI MH and 14500 Li ion batteries ?? 550 Lumen Aluminum Headlamp A lightweight headlamp with power to spare, the Klarus