Suitable for stony coral aquariums up to approx. 40 liters (11 USgal.), soft coral aquariums up to approx. 60 liters (16 USgal.), and freshwater aquariums up to approx. 80 liters (21 USgal.). Equipped with 76 1-watt LEDs with Ultra Low Current Technology. Cold white, blue LEDs (450 nm), green and red LEDs for an adjustable light spectrum from > 13,000 K up to pure blue light. Manuall adjustment with included magnet holder, alternatively with separately available SmartController 7000. Active power control: The power is adjusted depending on the luminaire temperature in order to protect the LED as much as possible. Permanently usable under water: the improved cooling increases the output up to a maximum of 26 W total output, correspondingly, the brightness and photosynthetically active radiation. Factory settings in air: Color temperature: approx. 30,000 K Perceived brightness: 400 lm Photosynthetically Active Radiation Flux (PAR): 2.2 W Photosynthetic photon flux: 9.2 µmol / s Power consumption: 9.5 W Power supply: 100-240V/50-60Hz. Magnet Holder for a glass thickness up to 12 mm (1/2"). Dimensions without holder (L x W x H): 305 x 25 x 13 mm (12 " x 1 " x .7") Cable length: 2.5 m (98.4") This lamp is intended exclusively for illuminating aquariums and contains built-in LED bulbs. The bulbs in the lamp can not be replaced.