... %~45%. 3,ENEC/TUV/CE Linkable Triphosphor T5 Fluorescent Lighting with Big RelectorProduct Description 1, Specification-14W,21W,28W,35W2, Body ... lampholder4, Electronic ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life time is 30 ... %~45% than traditional T8 , T10 tube.2,Good quality with competitive price;3, Instant start, ,no noise, low work temperature, low power ...