The Sunjack Camplight Usb Bulb is a 4 Watt ultra portable USB LED bright light at just over 3.5 ounces. A fraction of the weight and size of traditional heavy lanterns, use it for camping, reading, or any task that requires an even distribution of light. Sure you could use a flashlight. Or a lantern. Or I guess even an iPad. But SunJack’s CampLight looks and acts like a real live 4W LED bulb, delivering a 270-degree beam angle of ambient lighting when plugged into any standard USB source.