EchoSun products harvest available daylight. Photocell control dims the electric lighting when solar contribution meets or exceeds required levels. Motion sensors energize or de-energize the lighting upon local activity. EchoSun products are designed for use in low-rise applications, such as warehouses, industrial, offices, stores, schools and healthcare and can be installed in all roof types (metal, built-up, membrane, flat or sloped) and with open, finished, or dropped ceilings.