8 degree spot beam has extreme beam distance. High-efficiency LED provides extended burn time. 500 lumen output certified to the FL-1 Standard. Fit to the GoBe body for standard run time and GoBe body for a 10-15% reduction in brightness and 30% reduction in run time Engineered with the highest level CREE LEDs and optimized firmware. Custom engineered reflector optimizes the light to provide the most efficient and effective distribution for all your outdoor needs. Included: Head Splash Cap & Spare O-ring.