... ENEC/TUV/CE Linkable Triphosphor T5 Fluorescent Lighting with Big RelectorProduct Description 1, Specification-14W,21W, ... ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life ... than traditional T8 , T10 tube.2,Good quality with competitive price;3, Instant start, ,no noise, ... of glass and phosphor powder compared to T8 lamps.5, Good Color Rendering Index6,Pre-heat ...