Hydrofarm BUSD430AG 430-Watt Agrosun Red Sodium Grow Light Bulb Red sodium lamp enhances flowering, increased crop volume and supplemental greenhouse lighting Produce more, larger and better flowers and quicker than common sodium bulbs Recommended for situations where high output supplemental light is preferred Maximum wattage 430 and initial lumen output 58,000 Hid type sodium, bulb orientation universal, color temperature 2000 kelvin Sodium bulb Best choice for flowering, increased crop volume, and supplemental greenhouse lighting Produces larger and better flowers Works quicker than other common sodium bulbs Recommended for situations where high output supplemental light is preferred