The light is being developed through a collaboration between the Universitat Politècnica de Catalunya and Spanish startup Eolgreen. The current prototype stands 10 meters (32.8 ft) tall, and – along with an LED lighting array – features photovoltaic panels, a wind turbine, a battery pack, and an electronic control system that manages the flow of energy between those components. Its composite-bladed turbine starts generating electricity at a minimum wind speed of 1.7 meters (5.6 ft) per second, moving at 10 to 200 revolutions per minute and producing a maximum output of 400 watts. A planned second-generation turbine will only need to turn at 10 to 60 rpm, producing 100 watts as it does so.