Product touch switch as long as the finger touch on the bright. The lamp tube bends at will to adjust the satisfactory illumination Angle. Lighting with 21 high-brightness energy-saving LED lights. Three blocks of light. First gear: 11 white LED light, long press the switch to adjust the light brightness. The second: 10 yellow warm light, long press the switch can adjust the brightness of light, the third: 21 LED lights are all bright, long press the switch can adjust the brightness of light. The product is equipped with a bracket that sticks to the mobile phone as soon as it is put into use. The product can be used as a charger to charge any mobile phone. The product can work with two power sources. The first kind; The built-in replaceable 1500mah 18650 rechargeable lithium battery can keep lighting for about 8-10 hours when fully charged. Do not charge it when the light is not at all bright. Charge it in time when the light is weak.