1: LED Chipset: Luminus SST-50; Color temperature: 6800K-8000K, life time: more than 50000-100000 hours. 2: Voltage: DC 5.5-12V, Max: 15V, double Li-battery protect;

Current: LED whole course constant 5A, voltage step-down circuit input about 2-3Ah.
Theoretical luminance: 1000-1200Lm for 1 hour;
Dimming function: 100%-80%-50%-30%-10%-explode flash, total 6 grades;
Circuit function: low-voltage protection and high efficiency DC-DC, circuit will cut down power automatic when voltage of battery is low enough in order to protect life time of battery. Use DC-DC step-down constant circuit and efficiency is more than 85%.

3: Extreme Range: 600M

4: Aerospace aluminum alloy and hard anodized body, made by exact CNC lathe, Military level hard anodic oxidation, wear-resisting and durable, radiance color and not fades in color.

5: Whole high definition toughened glass lens.

6: High definition vacuum coating aluminum alloy reflect light cup ( orange peel surface or glaze surface ).
7: IP level: IPX-8.
8: Battery: 2 x 18650 (2200mAh) Lithium Battery or 4 x CR123 Li-Battery.
9: Battery Charge: take out of battery and then charge.
10: Switch: click-type tailcap switch
11: Pro-environment silica gel deflating cap (Black or Green color).
12: Weight: 307.3g (exclude battery).
13: Widely usage: Police, traffic, fire-fight, water project, forestry, outdoor, explore, trip and so on.
 
This model can headstand, also matches with fixture, and not become hot for long time running. Soft-press or power off 1-2 seconds for changing grade, not changing grade within 3 seconds power off. 
Please note that battery install in right direction. Also, use the same old and new level, the same specification, charge-discharge at the same time, not put it to no person’s place for long time and avoid damage.