The EOS energy-harvesting diffuser from Titus is completely powered by natural light harvested through a small solar panel mounted to the face of the unit. Its logic system monitors air temperature and its plenum-slot diffuser automatically changes air discharge patterns for heating and cooling applications. (Traditional diffusers have fixed discharge patterns that cannot change position according to whether heating or cooling is needed.) Because all supply air is effectively discharged, room temperatures reach the set point faster. This allows the HVAC system to run for a short time, saving energy.