... modes: Max – Med (user-defined) – 4 kinds blinkingSpecifications:2*CREE XM-L U2 LEDVersion A: (Neutral White ) beam, 1140 Lumens, runtime ... 2.5 hour, beam distance 250 meters.Version B: (Cool White ) beam ... , 1560 Lumens, runtime 2.5 hours, beam distance 350 metersMed (user-defined): 10%-20%-30 ...