Sunmaster - 250 Watt (Dual Spectrum Lamp) Shipping 400w and 250w dual spectrum

400w and 250w dual spectrum HPS grow lamp puts out both red spectrum and enough blue spectrum light to be used as a sole light source throughout all stages of growing

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Sunmaster - 250 Watt (Dual Spectrum Lamp) Shipping 400w and 250w dual spectrumGrow+ Photonic dual spectrum bulb The Sunmaster 1000w, 600w, 400w and 250w dual spectrum HPS grow lamp puts out both red spectrum and enough blue spectrum light to be used as a sole light source throughout all stages of growing. This eliminates the need to buy separate metal halide and HPS bulbs for the vegetative and flowering fruiting stages of plant growth. Sunmaster grow lights in particular are specifically tailored for the horticultural market