Leave together a brighter world behind than we found. The Sonnenglas convinces with a social business model. The sun lamp saves the sunlight and converts it into a warm and bright light. The solar cells in the cap of the Sonnenglas charge the LEDs inside the glass and provide sustainable light. This concept was developed for people in Africa who lived without power supply. Additionally those lamps replace the popular, but dangerous petroleum lamps in Africa. Since 2013 the Sonnenglas found also place in the market outside Africa. This lamp is not only robust and weather-resistant, but they also focus on the smallest possible ecological footprint and on durability. The ecological Sonnenglas is one of the most efficient light source and on the top it is a light for life.