Agrosun Double-Ended High Pressure Sodium (HPS) Lamp, 1000WGive your plants the advantage of more light intensity without a hit to your utility bill! PARsource Agrosun 1000W double ended HPS bulbs give you superior PAR production compared to single ended lamps, but without the energy drain. Ideal for cultivation with high light intensity requirements High proportions of red and blue light guarantee efficient solid growth High output of PAR light (2,100 mol s) promotes photosynthesis Lots of red light for