Come and Check Our Branding Solutions.Our USB reading lights are made of environmentally friendly materials, rated power 1W, rated voltage 5V1A, weight: 6 grams, color temperature white light 6500K, yellow light 3000K. Plug-in mini light is about 0.94 x 1.46 inches, small and portable so that you can carry it anywhere. You can plug it into any USB power source, The night light consumes very little electricity, save energy. Pls check inventory and detailed info before placing your orders.