1.Voltage available:90V-127V 2.Frequency: 50Hz/60Hz 3.The Average life is during 8000hrs. 4.The Color Temperature available: 2700K/4000K/6500K. 5.No black and yellow ring appears at the end of tube side within 2000hrs. 6.Adopt Halo phosphor, The light efficiency is more than 62lm/W,Amount Luminous Flux maintain at 1000 hours 95%,Amount Luminous Flux maintain at 2000 hours 85%. 7.IRC(Ra)>82 8.Adopt rapid start type of high quality filament 9.It is started within 5S/90V without starter and widely used in Middle South America, North America & Japan, etc. 10.The Product Packing available: one pc with a sleever paper, 25pcs/carton