... 45%. 3,ENEC/TUV/CE/RoHS Integrated T5 Fluorescent Luminaire Product Description 1, Specification-8W,14W,21W ... ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life ... greater than 10000hrs ModelColour TemperatuareLuminous Flux(Lm)T5 HE 8W2700K/4100K/6400K(warm white/cool ... than traditional T8 , T10 tube.2,Good quality with competitive price;3, Instant start, ,no noise, ...