400w Sunmaster HPS Sodium Lamp
Sunmaster Grow Lamps have a slightly higher amount of blue spectrum light which makes them better for use during the veg phase of plant growth than their rivals. Available in 150w, 250w, 400w, 600w and 1000w versions.
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Details Sunmaster Grow Lamps Product Details: Sunmaster HPS Sodium grow bulbs differ slightly from the competition as they have a slightly higher amount of blue spectrum light which makes them better for use during the vegetative phase of plant growth than their rivals. Sunmaster sodium bulbs will not outperform metal halide lamps in vegetative growth but if you don’t have the luxury of swapping bulbs over they will perform better than almost all the competition in this stage. Sunmaster Grow Lamps will fit any reflector with an E40 lamp holder and require a ballast that matches the wattage of the lamp you purchase.