Smart Portable Magnetic 4-Level Brightness with Flash Mode Rechargeable LED Flashlight / Lantern, White 4 levels of brightness with flash mode; 2%, 50% 75%, 100%, and flashing @ 50% with 1 sec. cycle Li-ion 2600mA battery provides up to 120 hours of light per charge; it can be charged using any regular USB ports (Micro USB cable included) Flicker free 5500K color temperature equivalent to normal daylight (200Lum) Durable aluminum and long life bulbs provide more than 36,000 hours of service Strong magnetic back attaches to any ferrous metal such as working under a car or truck; 2 nylon lanyards included for extra convenience