The features as belows:

1. Includes 4PCS high power white LED, with high brightness, even and gentle illumination.

2. Lens effective diameter 35mm, 9X magnification

3. Includes one PC 3.7V/1100mAh rechargeable Lithium battery.

4. Multifunction interchangeable with a single button on MCU, such as zoom in illumination (half beam), emergency lighting (full beam), mayday call lighting ( Flash).

5. One charge can power "zoom in lighting" for 10-12 hours, "emergency lighting" for 5-6 hours, "emergency flashing" for 20-24 hours.

6. Using Circuit, The lifetime for LED is up to 50, 000hours.