Zebralight-H600w-1020Lm-Headlamp-Flashlight-w-Olight-18650-Battery--I2-Charger

Features
PID thermal regulated outputs (1020Lm and 620Lm)
Builtin over-discharging protection (2.7V cutoff)
Durable electronic soft-touch switch
Proprietary heat sinking design bonds the LED board directly to the unibody aluminum casing
Durable natural hard anodized finish (Type III Class I)
Sealed and potted LED driver circuitry
Battery reverse polarity protection
Tempered optical grade glass
Waterproof to IPX7 (2 meters, 30 minutes)

Specifications:
LED: Cree XM-L2 Neutral White (Norminal CCT 4400K)
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 1020 Lm (PID, approx 2 hr) or H2 620 Lm (PID, approx 2.5 hrs) / 330 Lm (3.9 hrs) / 150 Lm (11 hrs)
Medium: M1 65 Lm (30 hrs) or M2 30 Lm (66 hrs) / 11 Lm (172 hrs)
Low: L1 3.5 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 H1
Light output are ANSI out the front (OTF) values. Runtimes tested (and parasitic drain estimated) using ZL631 batteries. Runtimes of the two PID controlled levels (1020Lm and 620Lm) vary greatly with ambient temperature and air circulation.
Operating Voltage Range: 2.7V - 4.2V
Battery: 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 :80 degree spill and 12 degree hot spot
Dimensions
Head Diameter: 0.95 inch (24.2 mm)
Length: 3.85 inch (97 mm)
Weight :1.4 oz (39 gram)