Self Power incorporates two technologies for public facilities. They work together to ensure optimum power- and water-saving performance.The first is an automatic micro-sensor – one of the world’s smallest – positioned at the tip of the spout. Accurate hand detection means only the minimum necessary amount of water is used. Located inside the unit is the second technology, a generator that harnesses the energy from water flowing through the tap to make the micro-sensor energy-self-sufficient.