Sun KingTM Tube is the industry’s gold standard with mobile charging capability. This brilliant tube light shines up to 40X brighter than a kerosene lamp at 400 lumens. It also packs a high charging capacity for mobile phone charging, all thanks to its large battery, large solar panel and efficient LEDs. In addition to its high performance and premium build quality, the Sun KingTM Tube comes at an affordable price. Get things done, at home or at work, day and night, with our most powerful tube light yet. Includes solar panel and in-built USB port for mobile phone charging.