... Cool WhiteColor temperature2700K ~ 6500KMaterialAluminum alloy + PCCertificationCE, ROHS,Features Light Technical Characteristics: Luminous Efficiency: 90-110Lm/W(cool white), 80 ... 85-135V OR AC 185-265V Line Frequency: 50~60Hz Working Temperature: -30 °C to +50 °C Dimmable Version: ... products, such as Ceiling lamps, track light, down light, bulb, lamp cup, tube light and other LED prodcuts 2013 Cheap ...