?Don't need any battery and bulb, It works with any 5V USB socket. For Laptops, Computers, powerbanks, USB chargers
?Easy To Use And Install, Hyper bright LED consumes far less power than a standard bulb
?Bright & Efficient: Built with 6 ultra-bright LED, the normal lifespan can be 20,000 hours.
?The lamp is made of soft-touch silicone and is flexible and can be bent at any angle, and then straightened for transport
?Very Portable and convenient (17cmx1.8cm), Can be used for Different Occasions Such as Bedroom, Outdoor Camping, Book Reading, Working and Writing etc