COB series, which comes with VitalWhite, SuperActinic and ArowanaRed, provides essential light spectrum for plants and corals. The simple ON/OFF switch instead of dimmer or controller saves the extra cost which most of the local fish store (LFS) may not need for using on their store holding tanks. The photos shown in the FB post are some holding tanks in a LFS in Taiwan. The corals under COB series SuperActinic units are of very good colors which can immediately attract customers' eyes when they visit the store. One COB series unit can replace most T5 fixtures which have the same length but it only consumes half the power of the T5 lamps which provide the same light output!