Red Sea ReefLED 115 G2Improved color rendition ?? Higher proportion of UV and violet LED chips and wider selection of individual wavelengths in the ReefSpec Blue, with spectrum widened to 470nm. Increased number of white LEDs ?? More light at the lower Kelvin settings, great for photography. Full power from 10,000K to 23,000K ?? through dynamic power management. Kelvin color scale and intensity setting ?? automatically creates the correct blend of Blue and White. Exposure