... grow lights. We continually work to produce the highest quality, fully featured, and most up to date hydroponic ... may send you a replacement.High Pressure Sodium ( HPS ) Bulb Specs400w, 600w, 1000w = 53,000, 86, ... improved stability/safetyProfessionally designed for plant vegetative growthFlicker free lamp if used with Apollo BallastsRegulation: ... you a replacement HPS grow light Hydroponics 600W HPS/MH