SUNMASTER Green Harvest Grow Lamps emit balanced light similar to a 4000° Kelvin source, imitating the natural white look of sunlight. They are ideal single lamp sources for practically all phases of plant growth.
SUNMASTER Green Harvest Metal Halide Lamps are effective in promoting both vegetative growth and flowering. They surpass many other HID sources in PAR watts – the most objective measurement of total light energy available for photosynthesis.
Available in 400 watt or 1,000 watt versions, with a choice of universal, horizontal or base-up burning configurations for optimum performance.
SUNMASTER Green Harvest 4000K Lamps set new standards in general plant lighting, promoting high levels of photosynthesis without compromise.
Designed for optimal performance on electronic ballasts
Balanced spectral output
Promotes both flowering and vegetative growth
Long life
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Place Categories: Grow Light Bulbs and Sun Master.
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David, Apr 23, 2013 - SUNMASTER Green Harvest 4000K
5/5
Put this bulb in my HydroFarm hood and have been using it for two cycles of vegetation without any problems. Has a great spectrum that my plants seem to love, if this one burns out for some reason I’ll probably end up buying the same one.