Two-channel fixtures such as the SpectraMax series have red and white channels. The blue spectrum is built-in with the white channel.
Three-channel fixtures such as the SolarSystem series have three separate channels; red, white and blue.
Two-channel fixtures such as the SpectraMax series have red and white channels. The blue spectrum is built-in with the white channel.
Three-channel fixtures such as the SolarSystem series have three separate channels; red, white and blue.