These 600W HPS grow lights are from market leading lighting manufacturers Sunmaster and Osram. Osram were one of the very first lighting companies to produce HPS lights for growing plants and Sunmaster is a dedicated horticultural lighting manufacturer. Both of these companies make high quality grow lamps that offer fantastic performance. However, the 600W HPS from Sunmaster is slightly better value for money.
HPS lighting puts out the majority of its light in the red and yellow spectrums. These are the optimum light spectrums for ensuring healthy and vigorous development during the flowering and fruiting stages of the plant life cycle.
Unlike dual spectrum HPS lamps which can be used throughout all stages of growth, these 600W HPS lights are designed solely for use during the flowering and fruiting stage of development, and will need to be accompanied by a lamp that puts out primarily blue spectrum light (such as a metal halide) to ensure healthy development during the vegetative stage of development.
In fact, most professional growers choose to use a combination of HPS and metal halide lamps throughout the entire growth cycle, usually using a ratio of one metal halide for every two HPS bulbs, which is shown to produce great results. However, this is space permitting, and in smaller growing environments where heat is an issue, it will be just as effective to use a separate metal halide and HPS for the vegetative and flowering / fruiting stages of growth.
To ensure optimum performance of your HPS lights please ensure you replace the bulbs at least once every 8 months, as they do degrade over time.
These 600W HPS grow lights are made to a very high standard and represent the best lamps on the market. Overall, the Sunmaster is a great priced lamp that offers great performance levels. The Osram, although slightly more expensive, has a marginally better spectrum output, but this really is marginal. Both lamps will serve you well and really it is a matter of personal preference when it comes to picking one of these brands.
Sumaster 600W HPS - 95,000 lumens
Osram 600W HPS - 90,000 lumens
Wattage and coverage
To give you an indication of the grow lights you’ll need we’ve included an estimate below of the amount of coverage each type of light will provide.
**Please retain original packaging for your lamps to validate the 12 month warranty**