GLL Retro Lamps, Eye-caring LED Night Light (Kerosene Oil Lamp Design, Blowing Controlled On/off , Dimmer Control Knob, USB Charging Port, Rechargeable Battery Cordless Wireless) (Red) Unique Blowing Control: turn on/off the lamp with a gentle blow into the lampshade (push the button to power on the light before blowing) Retro Kerosene Oil Lamp Design, highlight led and soft light without glare,energy saving, long life Dimmer Control Knob: turn the key left to make the light dimmer and right to brighter; When adjusted to the dimmest brightness, the light will start to flicker, just like the candle light effect USB Charging Port: usb cable connected to the computer or power adapter, power bank for charging. Rechargeable Battery: it is an cordless wireless lamp after full charge, convenient use indoor and outdoor.