Application: Ideal for camping, fishing, dog-walking, emergency lighting, etc. Product Description Multicolor Available You can adjust the light settings by rotating the switch ring, and the flashlight has daylight white, yellow, red, green, blue, UV lighting mode choices. Rechargeable With an 18650 lithium battery and USB charging cord, you no longer have to worry about replacing batteries. Over Discharge/ Overcharge Battery Protection Board By protecting the battery, the overall longevity of the battery as well charge holding effectiveness is increased. High Quality LED Uses a high-quality CREE XPG2 LED chip as its light source for daylight white color mode, which increases longevity of the products as well provides an ultra-reliable light source. Extended Illumination Range Adjustable focus and can illuminate a distance of over 2 football fields (650 ft.). Specifications Charging Voltage: 5V DC Charging Current: 1-2A Charging Time (approx.): 5 hrs. Discharging Time (approx.): 3 hrs. (Daylight white), 3.5 hrs. (Red), 5 hrs. (Yellow), 6.5 hrs. (Green), 5 hrs. (Blue), 9 hrs. (UV). Zoom in/out: Yes USB Cored: Included Battery Capacity: 2000 mAh Note: The built-in battery is a specified dipolar battery and only suitable for internal charging. Please do not charge the battery with other device or replace it by yourself.