50,000 hours average rated lifetime Last 2.5 times longer than 54W 1149mm fluorescent tri-phosphor T5 lamp High switching cycles - 200,000X Omni-directional light distribution and wide beam angle Minimum and maximum operating temperature: -20°C to 50°C Glass construction and polycarbonate end-caps Only suitable for direct mains (AC 220-240V) operation Ideal for factories, parking lots, supermarkets, department stores, schools and offices Not suitable for operation with electronic/ECG or magnetic/CCG ballasts