Streamlight 61052 Septor LED Headlamp with Strap - 120 Lumens Seven ultra bright white LEDs Features three levels of lighting and up to 55 hours of continuous run time 3 watt Luxeon LED, impervious to shock with a 50,000 hour lifetime Run time: high up to 4 continuous hours, low up to 15 continuous hours 6-3/4-inches high by 2-3/4-inches wide; 3 inch diameter