About Product:Stepless dimming: through the rotary knob switch to adjust the intensity of the LED light brightness state, free adjustment. Fashion folding design: according to your needs, adjust the light level, the size of the lighting range, so that more comfortable light. Ultra large capacity battery: built-in 1800mAh large capacity battery, full power can be used continuously for 2.5 hours. Patch type LED light source: the use of 42 imported chip LED lights, more than ordinary LED lights 50% brightness and life.