This latest 250W High Pressure Sodium (HPS) Grow Light benefits: accelerate development and hearty flowering! HPS light is for better flowering, which is best for your plants chlorophyll production. The high output version lamp with 20% extra output. The increased Blue increases fruit weight and total number of branches, also maximum your yield. One lamp can be used for whole growling cycle, without traditionally using MH lamp for growing stage and changing to HPS lamp for flowering stage. It is especially productive for professional growers. SPECIFICATIONS Power: 250 watts (High efficiency) Expected Life Span: 29,000 hours Lumen: 29,000 lumens Contains extra 20% more blue spectrum compare to standard HPS lamp Maintain rich red spectrum for super high lumen output Strong power to penetrate fog High output, high luminescence efficiency Fit for all standard 250 watts HPS grow light systems Better results by using Grow Lush high output 400w magnetic ballast