The T-5 HO (high output) lamp produce almost twice the light output of standard fluorescent tubes. In addition to their brightness, you can fit more of these slim tubes （5/8 in in diameter）into the same amount of space. This means more light in less space. T-5 tubes are an economical, high light output option for both fresh and saltwater applications.
Perfectly matching with all Chihiros LED lamps, this dimmer has seven levels of brightness and a power-off memory function, memorizing the last settings before power off. The remote control makes adjusting the light very easy.