... lampholder4, Electronic ballast--four configuration for choice: A) IC Standard with chip, PF≥0.99, THD<15%, life time ... noise, low work temperature, low power consumption4, Good for environment use solid-stated mercury, 38% less usage of ... time7, No flicker, near to natural light,good for eyes8, No labour and no modification cost to ... and so on T5 wall lamp fixtures built in EB 6w/8w/13w/14w/21w/28w/35w