... 10% 4.Warm start, 25000hrs 28w t5 lighting fixture lighting fixture Power: lighting fixture HE series:4w,6w,8w,13w,14w ... tri-phosphor powder fluorescent lamp,more brightness,high efficiency5.lighting fixture No noise,no flicker,low work temperature, ... 45%7.light fixture Installation:Ceiling mounting, series connectionApplication: House lighting, shopping mall,refrigeratory,show case,hotel,office etc 28w ...