Zebralight H52w AA Headlamp Neutral White
Light Output (runtimes)    High:         H1 280 Lm (0.9 hrs)   or    H2  172 Lm (1.7 hrs) / 108 Lm (3 hrs)    Medium:    M1 50 Lm (7.5 hrs)    or    M2   25 Lm (12 hrs) / 12 Lm (27 hrs)    Low:         L1   2.7 Lm (4 days)   or    L2   0.34 Lm (3 weeks) / 0.06 Lm (2 months) / 0.01 Lm (3 months)    Beacon Strobe Mode: 0.2Hz Beacon at Low / 0.2Hz Beacon at H1 / 4Hz Strobe at H1 / 19Hz Strobe at H1         Light output are ANSI out the front (OTF) values. Runtimes tested (and parasitic drain estimated) using Sanyo 2000mAh Eneloop AA batteries. Light output with 14500 batteries are the same except that the H1 is 500Lm for the first minute and then step down to 280Lm.