G5 Cap 5 year guarantee Osram presents this high efficiency 1150mm long LED T5 tube designed as an alternative to a 50W fluorescent T5. It produces a bright 4100 lumen output in a crisp 6500K colour and the impressive 60000 hour average lamp life provides longevity and reliability This lamp requires a high frequency ballast in order to operate please ensure your system is compatible before installation.efficiency A 60000hour life 6500K 4100 lumen 160 degree beam use with HF ballasts 1150 x 17mm T5