The Sylvania Grolux HPS 600W/400V bulb uses patented arc tube technology to deliver the highest possible photosynthetic efficiency on the market.
These bulbs have been optimised for the highest PAR output with lumen maintenance of 95% at the end of the lamp’s lifespan.
For best results, we recommend using this either as a complete lighting solution, or as supplementary lighting in your green house or grow room.
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