Our View - Luci Lights Outdoor 2.0 Pro Series: Mobile Inflatable Solar Light plus Mobile Charging: The Luci Pro: Outdoor 2.0 Inflatable Solar Light plus Mobile Charging are the toughest, longest lasting Luci light ever. The new version features mobile charging through a two-way USB port, the Luci Pro Series charges from empty to full in just a few hours when plugged in to a power source and lasts 50 hours or more on a single charge. Top up the charge on your smartphone with the power of the sun, and still have enough battery power to have brilliant light for another couple of hours. Specifications - Luci Lights Outdoor 2.0 Pro Series: Mobile Inflatable Solar Light plus Mobile Charging: Mobile charging 150 lumens Cool white LEDs Adjustable base strap Lasts up to 50 hours on a single charge Recharge via solar panel or quick charge via USB Fixed top strap Built-in two-way USB port USB to USB cable included Durable: withstands up to 150 lbs of pressure Lightweight: 6.1 oz (173 g) Waterproof: IP67 Operating temp: 32ºF – 113ºF (0ºC – 45ºC) 4 modes: low, medium, high, flashing 2 second quick shut off Battery level indicator Battery life - Low: 50 hours; Medium: 24 hours; High: 5 hours; Flashing: 9 hours Recharge via solar or quick-charge with USB (14 hours / 2-3 hours) Rechargeable 2000 mAh Li-ion battery Overcurrent protection Diameter: 5 inches (12.7 cm) Height: 5 inches (12.7 cm) Collapsed: 1.5 inch (3.8 cm) Luci Lights Outdoor 2.0 Pro Series: Mobile Inflatable Solar Light plus Mobile Charging