Directly plug the USB LED light into the USB port on your notebook, PC,laptop or Power Bank,even cellphone charger.It can be used for any 5V USB prot. Built with 6 ultra-bright LED bulbs for low power consumption. Simplified Illumination: No set up, assembly, or batteries required. Simply plug into any powered USB port for illumination. Lambency Lampshade design provide eyesight protection; avoiding direct LED light. Slim,Flexible, bendable and lightweight portable design for simplified storage and use on the go. Package Size: 14cm x 11cm x 1cm (5.51in x 4.33in x 0.39in) Directly plug the USB LED light into the USB port on your notebook, PC,laptop or Power Bank,even cellphone charger.It can be used for any 5V USB prot. Built with 6 ultra-bright LED bulbs for low power consumption. Simplified Illumination: No set up, assembly, or batteries required. Simply plug into any powered USB port for illumination. Lambency Lampshade design provide eyesight protection; avoiding direct LED light. Slim,Flexible, bendable and lightweight portable design for simplified storage and use on the go. Brand No Brand SKU OT776EL14I8ZONAFAMZ-253157