... 230V directly without additional ballast use free 1.low energy,high output;ballast2.certificate:CE,RoSH,GS3.lamps warranty:1 year ... life:8000 h-10000 hours,save electricty rate:80% ,rated power:7/9w5.Color-temperature:2700k-6400k 6. Length*Width:127 ... , office, reading room, showcase, entertainment place etc. gold flame style saving lamp