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We carry a large selection of High Pressure Sodium (HPS) and Metal Halide (MH) grow lights optimized for plant growth. Generally, bulbs with more output in the red spectrum are used for an enhanced flowering response. More output in the blue spectrum promotes vegetative growth.

If you have an indoor garden or are looking to add grow bulbs to your greenhouse, just match your ballast type and wattage to the appropriate HPS or MH bulb below. “Conversion” bulbs are also available - a MH conversion bulb will run on a HPS ballast. Make sure to check your ballast type before purchasing. Most newer digital ballasts will run HPS and MH bulbs.

Whether you’re growing in hydroponics, organic soil, aquaponics, or any other medium, using a grow light designed for fast plant growth is the most important decision you can make.
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