... glare, No humming noise, No radiation of UV. or IR.4. Energy-efficient, environment-friendly5. Constant current design, low heat ... very modern,bright and good for the heat dissipation.4 PMMA difusser,2mm thick,good transmition of light and the ... . Hotel, conference room,3. Factory, office, house, warehouse;4. Airport, metro-station,supermarket5. School, hospital,6.Places that require energy-efficiency ...