Fluval Marine Spectrum LED is designed for hobbyists who want to maintain a thriving saltwater aquarium. Featuring free Fluval Smart App technology, the light offers a variety of customizable options controlled via Bluetooth on your mobile device. The LED light is suitable for retrofitting into existing T5/T8 light bars or as a stand-alone light on or above the aqaurium. For installation in a T5/T8 luminaire please order the adapter set separately. The suspension kit is also available separately. Thanks to the Fluval Smart App technology you can set and control different lighting effects from your mobile device (smartphone or tablet). This includes a customizable color spectrum created by the 7 unique LED band waves that promotes strong plant growth. A programmable 24-hour lighting cycle provides a truly natural effect with gradual sunrise, sunset and night lighting. Even without a smartphone or tablet, you can control the Fluval Plant LED manually via the control knob (on/off, night l