‎:‎ Low heat‎-generating‎,‎ provides bright and soft light‎,‎ eye protection‎.‎ Convenient for reading on the table as well as in the bed with metal clip design‎.‎ Idea for lighting the laptop or PC in the dark‎,‎ with ON/OFF switch design‎.‎ USB power supply‎,‎ no battery required‎.‎    & High quality InputVoltage：DC5V Power：1W                             Working current：350mA Length the cable：2.5m/98.4‎"‎‎(‎Approx‎.‎‎)‎ Length of tube：300mm/11.8‎"‎‎(‎Approx‎.‎‎)‎ Rotation Angle：Free rotation Color‎:‎ Show as pictures LUX：140lux（25 to 30cm） Product Application：Notebook‎,‎ desktop‎,‎ studying lighting‎,‎ bedside lighting Using Methods‎:‎ Fixing the lamp with a clip and plugging the USB interface to the computer USB port or USB charger Package contains‎:‎ 1pc x USB Reading LED Light Note‎:‎ 1‎.‎ Because the different measurement methods or fabric elasticity and other issues‎,‎ so there may be 0.1‎-0.5 inch error‎.‎ 2‎.‎ Please understand because of the light irradiation or computer display difference‎,‎ so I  can‎'‎t guarantee photos and real color is 100% the same‎.‎