SunBlaster T5HO lamps provide the ideal spectrum for seed, cuttings and plant growth. Photosynthesis outputs peak between 435 nm and 680 nm. Our 6400K T5HO lamps have a spectral distribution with relative intensity peaks at 435 nm and 615 nm. These are ideal for both propagation and longer term growth. \n \nThis equates to very little wasted light energy in terms of plant growth and production. \n \nSunBlaster T5HO lamps are not off the shelf, our Full Spectrum light recipe was designed to provide the highest quality grow lighting available for a wide variety of indoor or CEA growing applications. \n \nIdeal for both Commercial and Residential applications. \n \n\n