High efficiency and energy saving with built in ultra quiet inductive ballast or high efficiency ... Electronic ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life time ... tube.2,Good quality with competitive price;3, Instant start, ,no noise, low work temperature, low power consumption4, Good for ... and so on T5 wall lamp fixtures built in EB 6w/8w/13w/14w/21w/28w/35w