From the manufacturer:SUNMASTER Cool Deluxe Grow Lamps emit 6000° Kelvin, imitating the natural look of daylight. They are an ideal light source for the seedling and vegetative stages of plant growth, while still emitting a wide spectral distribution.SUNMASTER Cool Deluxe Metal Halide Lamps surpass many other HID sources in PAR watts - the most objective measurement of total light energy available for photosynthesis.
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