25000 Kelvin 320 Lux. High efficiency Power LED for all open aquariums up to a max 35cm in height. The stylish round lamp with high quality energy-saving Power LED (up to 80% energy saving) distributes light evenly throughout the tank and ensures a beautiful underwater world due to a light spectrum and luminosity specially adapted for corals and their growth requirements. High quality LED (81 diodes) for optimum illumination right to the bottom of the tank. High energy efficiency only 7 watt. Long service life approx. 20000 service hours. With practical clamps for variable fixing. Up to 20mm clamping width also for open aquariums with frame moulding. 12volt mains adapter