NO NAME - BULB HPS SON-T - AGRO - 250 WWITHOUT BRAND HI QUALITY HPS bulb has been specifically designed for greenhouses supplementary lighting. It has increased blue light and the highest PAR rating. This is the hottest bulb right now and gives neccessary heat to the plant from to grow till bloom. Features: Extreme high light output Improved quality of light : increased red and blue light output 10% higher photosynthesis flux when compared to standard HPS 'super' bulbs High PAR radiation