... old type T8 fluorescent tube directly; 3)Has high output.4)With high Power Factor (PF), low operation current; Power ... 1.1-2 multiple .6)Build-in electronic ballast and no starters needed;7)Easy installation, Instant to start ... : cut-off protection, overheat protection, overload protection, end of life protection3) color: 2700K, 4100K, 6400K. LED energy save light-High quality and high energy-save