Plantmax 600W HPS Bulb High Pressure Sodium Lamp! High Pressure Sodium with adjusted blue spectrum brings you the best yields in flowering and fruiting. Quality, Values & Results. Operating position: Universal Sold with No-warranty Distributed from our California... $32.30
InterLux Super 600W HPS Grow Lamp 600W Interlux Super HPS Bulb- high pressure sodium Super HPS-bulbs are designed specifically for indoor enhanced plant growth and flowering. High Pressure Sodium has a light spectrum shifted towards the red, and is used during the flowering stages of... $39.00