Product parameters: Light source type: LED Product model: Q16-3 Brightness: Three speeds to change color temperature Switching method: Touch switch Battery capacity: 1 lithium battery of 250mAh Power supply: 5W USB socket for charging at any time The product is equipped with a USB charging cable that can be connected to a mobile power source or a charging head. Of course, it can be used while charging or receiving power. At the same time, a battery protection switch is used to prevent short circuits during charging. Connectable to computer, connectable charging head, connectable power bank with extra pen holder, mobile phone holder function is based on the original. Functionality of the desk lamp. The functions of the pen holder and mobile phone holder that save a lot of space. The daily study, work and life of the power bank's lithium battery are closely linked to light, where a table lamp is convenient, and the soft light that accompanies the dream on the road day and night. There is no risk of blue light, the light is healthier, LCS laboratory testing and certification, without risk of blue light, the light is healthier and more comfortable. Packing quantity: 1 * lamp