With a warm, natural glow, the Luci Lux Pro effortlessly combines versatility, durability and elegant design to make every adventure epic. Easily keep the light going with mobile charging through a two-way USB port. Harness the full potential of sustainable, portable power with this amazing light. Has four modes for your choice of light intensity. Charges in 14 hours via direct sunlight or charges in 2-3 hours via USB. Lasts up to 50 hours. Bottom and top straps. Waterproof. Measures 4.25 x 5 in inflated.