The Manutti Lumo outdoor lights, designed by Koen Van Extergem, are outdoor rechargeable electric lights that will last for up to 20 hours on a single full charge. Operated by remote control, there are also no wires to think about as the units are stand-alone. There are 3 sizes-small, medium, and large. These lights are masterpieces of beautiful engineering with a deceptively simple and elegant design.