600w Metal Halide Lamp seed starts black spot

black spot

Available Phosphoric Acid (P₂O₅)

making it one of the strongest rooting gels available

Drainage Elevation: Keeps grow cubes elevated off the bottom of standard flats

won't create sludge

600w Metal Halide Lamp seed starts black spotThis metal halide grow bulb is designed to deliver the light spectrum plants need during the vegetative phase, when strong structure and healthy canopy development are the priority. Its blue white output encourages tight internodal spacing and steady, controlled growth, helping plants establish a solid foundation before moving into flowering. As a high intensity discharge (HID) lamp, it provides powerful, concentrated illumination ideal for indoor