Sunmaster High pressure sodium H.P.S Lamps are used during the flowering cycle of plants and are rich in the red end of the spectrum and to the eye they emit an orange/yellow light. HPS lamps will give you much tighter and thicker flowers than a metal halide and are available in sizes from 150 to 1000W. Sunmaster have now put more of the halide particles into HPS lamps which increases the blue spectrum slightly, consequently many growers will vegetate as well as flower under these. They are the preferred light source for growers who want to vegetate as well as flower their plants under one light source. Sunmaster 1000W H.P.S lamps deliver 15% more light than standard H.P.S lamps.
