Built-in 2000mAh Li-ion battery. Multiple charging methods through adapter or power bank or computer. Comes with 6 pieces purple mosquito traps light with 360-400m mosquito trap wavelength specially selected. Equipped with over-charge, over-discharge, over-current, and load short-circuit protection, etc., to accurately detect the charging voltage to ensure the safety of charging. With charging display function, (when one light is on, the power is 25%, when two lights are on, the power is 50%, when three lights are on, the power is 75%, and when four lights are on, the power is 100%). With elegant standing base.