The Best Mothers Day Gifts Specifications: Folding: It folds to a handy compact size that easily fits into a pocket or purse. Battery (4 x AA not included) or USB powered: 1.When use battery powered, it is portable ,you can take it everywhere you want like camping, hiking, travelling,etc. 2.When use USB cable powered, it can be used as a desktop lamp,best for reading/studying/working,you can connnect it with you computer,power bank,or you can use your power adapter to plug into the main power socket all the time,but once you unplugged it ,the light will go out. Powerful & Portable, the LED Folding Lamp is a compact light with a mighty shine. Hight light COB LED Stylish, eco-friendly, better for your eyes Portable & Powerful Wattage: 3W Size:5.1x2.8x12in(open) 5.1x2.8x1.8in(folded) Weight: 6.6Oz Package includes: * 1 x COB LED Desk Lamp * 1 x USB cable Our products have been well tested, examined and packaged before sending off. Any problem please feel free to contact us first so that we can supply the best service for you.