iPower 600 Watt High Pressure Sodium HPS Grow Light Bulb Lamp, High PAR Enhanced Red and Orange Spectrums CCT 2100K HIGH LUMEN OUTPUT: 85,000 Lumens output, compatible with electronic and magnetic ballast, E39 Base SPECIAL DESIGNED FOR PLANT GROWTH: Designed specifically for Professional Hydroponic Plant Cultivation. CCT 2,100K, Optimized red & orange spectrum and high PAR (Photosynthetic Active Radiation) to stimulate flower growth and enhance fruiting EXTRA-LOW LUMEN DEPRECIATION: maintaining over 90% of initial lumen output after running for 6,500 hours EXCEPTIONAL BULB LIFE: 32,000 hours. New long lasting life with a high lumen output and high power efficiency. 1 year warranty NOTE: allow 3-5 minutes for full bright. Please wait at least 5 minutes after power shut off before striking again