Linkable T5 fluorescent Lighting with Big Reflector 1,Specification:8W,14W,21W ... 3,ENEC/TUV/CE Linkable Triphosphor T5 Fluorescent Lighting with Big RelectorProduct Description 1, Specification-14W,21W,28W,35W2 ... ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life time ... than traditional T8 , T10 tube.2,Good quality with competitive price;3, Instant start, ,no noise, ...