... 1. Factory price 2. Save more than 85% energy 3. CE, UL, ROHS Certificate 4. Life ... Temperature -40~70°C Advantages1. High quality, competitive and factory price2. Low power consumption, High power efficiency3. ... Brightness, compared to conventional fluorescents save more than 80% energy 4. Life span up to 35,000hrs5. CE, ... hotels, Schools, Factories 5. Any other indoor places Energy saving Down Light