Attribute Value 1 USB LED Light. Items are made of environmental friendly silicone, plastic and metal; no harmful objects contained. They are well tested before being put to market. Powered by various USB devices, like laptop computer USB ports, power bank, USB adapter, or phone chargers. Very convenient to carry(55g/2oz) and use; handy light for laptop, reading light, book light, night light, notebook keyboard light, etc. No battery contained. Soft light lampshade, it avoids direct led light to protect your eyes.Soft and bendable silicone body, it easy to use anywhere.Flexible Goose Neck - Direct lighting to avoid glare The arm of USB reading light is made of metal tube, covered by silicone hose, easy to twist and set the nice lighting direction and viewing for reading or working in the dark. You might experience moderate heating from the LEDs - this is normal and won't damage the product.