Portable USB Light Bulb for Power Bank 5v 4w Emergency Super Bright Led Light Bulb
System Requirements: USB Port
• Powered by any USB source, such as power bank, computer, laptop, or with the cellphone charger adapter. Super energy saving, lightweight and portable. 3.5ft long wire.
• Super bright LED USB light bulb for your camping or emergency use
• Can connect the computer with USB, such as mobile power supply, the output of the equipment.
• Powered by USB High power LED, could reach range about 10 meters.
Usb bulb light A brand new super energy saving and brightness USB led light bulb for your camping night or emergency use, lightweight and portable, it's a necessary for your home and outdoor camping tools. Suitable for hotel, dining room, guest room, office, show room, shop, corridor, etc