Zebralight H602 Cool White LED Headlamp
LED: Cree XM-L2 Cool White (Norminal CCT 6300K)User Selectable Levels: 3 main levels (High, Medium and Low). Each main level can be programmed to one of its two sub-levels. The second sub-level of the each main levels can be further programmed to different brightness levels.Light Output (runtimes)***High:         H1 1090 Lm (PID, approx 2 hr)   or    H2  660 Lm (PID, approx 2.5 hrs) / 350 Lm (3.9 hrs) / 160 Lm (11 hrs)***Medium:    M1 70 Lm (30 hrs)    or    M2   32 Lm (66 hrs) / 12 Lm (172 hrs)***Low:         L1   3.7 Lm (16 days)   or    L2   0.4 Lm (2.5 months) / 0.06 Lm (4.6 months) / 0.01 Lm (5.5 months)Beacon Strobe Mode: 0.2Hz Beacon at Low / 0.2Hz Beacon at H1 / 4Hz Strobe at H1 / 19Hz Strobe at H1Light output are ANSI out the front (OTF) values. Runtimes tested (and parasitic drain estimated) using ZL631 batteries. Runtimes of the two PID controlled levels (1090Lm and 660Lm) vary greatly with ambient temperature and air ciculation.Operating Voltage Range: 2.7V - 4.2VBattery: One 18650 size (up to 69mm long) 3.6/3.7V li-ion rechargeable. Batteries are not included in the package.Parasitic Drain: Negligible (much less than the self discharging of a battery)Beam Type***120 degree floodDimensions***Head Diameter: 0.95 inch (24.2 mm)***Length:    3.82 inch (97 mm)Weight : 1.5 oz (43 gram)