400 Watt SolarMax Blue Enhanced Super Metal Halide Growth Lamp

400W MH Cool Deluxe Plant Grow Light BulbIn younger plants it is the region between 380 nm - 520 nm that is the most crucial. This region is commonly referred to as Blue Light. SolarMax lamps deliver 30% more nutritious light radiation than standard lamps. The result - more vigorous, vegetative growth and stronger roots during the important early stages of a plant's development. Color Temperature 7200 degree Kelvin. In all stages of plant growth, plants need spectral energy (light) between 400 nm - 700 nm. This is technically known as Photosynthetically Active Radiation or PAR. These combined spectral distributions provide all the light energy needed for your plants. Balanced spectral outputEnhanced blue component promotes vegetative & growth stagesRich blue content for healthy vegetative growthHighest PAR rating of all HID sourcesLong life, economical.