This USB light has PVC body with metal lamp. It can be used on your laptop notebook, computer, power bank, USB charger or all other devises with USB port. Simply plug the light into a USB port to illuminate your keyboard or paperwork. A great product to use while reading, writing, studying, searching at night, travelling on flight, bus or railway. Soft light lampshade avoids direct led light to protect your eyes. Perfect giveaways for school opening day, bookstore activities, night running events, award ceremony .