Charge it in the sun or by usb, the high efficiency solar panel will even charge indoors, so will charge just by being near a window. It folds incredibly flat, so very easy to store in a glove box or backpack. To use simply twist open and blow in a little air, it has a very simple operation, just click the power button to scroll through the modes. Turbo 75 lumens, 3 5 hours run time high 50 lumens, 6 8 hours run time medium 25 lumens, 12 24 hours run time low 12 lumens, 18 24 hours run time flash 12 lumens, 36 48 hours run time perfect for exploring the great outdoors, take camping, hiking, festivals, dog walking, or just keep as an emergency light at home or in the car. The nova also floats, so can be used in the pool, or on boats, watch the video below to see the lantern in action. Click to see the full range of luminaid products. 75 lumensfully recharges in 10 12 hours in sunlightfully recharges in 1 2 hours via micro usb input5 brightness modesprovides 125 square feet of lighting on highest modebright white light4 led battery status indicatorsred charging led lights when charging5v micro usb input charging portadjustable hang strap which also doubles as a lock when folded down.inflated size 12cm x 12cm x 12cmdeflated size 12cm x 12cm x 2.5cm