In the past flourescent lamps are widely as it produces brighter visible lights than the incadecent bulb. If you switch
fluorescent lights here you can find it to be more efficient and it has lower energy cost than an incandescent lamp. That is why it is best for commercial and office buildings to save on energy. The lamp fixture requires a ballast to regulate the current through the lamp. The life of a fluorescent lamp is approximated 20 times longer than incandescent lamp.