reducing the efficiency of lighting and wall reflection coefficient of attenuation.Р 2.4.3 create a good working environment, improve work efficiency in the office, with dimmable electronic ballasts for fluorescent lamps in the smart Under the control of lighting control system with the traditional fluorescent lighting systems have significant pared to. Conventional fluorescent ballasts to 100Hz frequency flashing (2 times the grid frequency), this strobe enable staff to head swollen, eye fatigue and reduce work efficiency. The dimmable electronic ballasts are working in very high frequency (40kHz ~ 70kHz), not only to e the flicker, but also to eliminate the starter when the brightness of the instability, provides fortable environment conducive to health, but also improve the efficiency.