Indoor Cultivation

Increase Yield & Plant Health

Designed for 

Commercial Horticulture

Indoor Grow Lights

GrowRay’s grow lights surpass the output of traditional DE HPS lights in intensity, optimized spectrum, uniformity of high-value PPFD (Photosynthetic Photon Flux Density) and longevity. Combining Samsung mid-power and Osram ceramic potted LEDs with superior thermal design, you can expect more than 50,000 hours of service.


GrowRay’s passive heat management system is critical to maintaining the intensity and lifetime of its LEDs. In addition to CAD heat-management modeling and field-testing, GrowRay’s fixtures produce the most powerful and uniform light available. Full spectrum provides better canopy penetration, utilizing the green spectrum to transport photosynthetic receptors in the red and blue range.


The GrowRay proprietary spectrum increases plant visibility and eliminates the eye strain that can result from working under HPS lights. A higher Color Rendering Index (CRI) helps the grower see potential problems at the canopy level with greater clarity than traditional HPS, HID and many LED fixtures.

Higher Yields

Lower Cost of Production

Increased Plant Health

Warehouse applications can count on over 30% energy savings compared to an 1100W DE ​HPS​, (with wall plug to wall plug measurements). Lower HVAC costs, both installation and ongoing, account for over 30% energy savings. ​Much higher LED efficiencies translate to far less heat produced.

GrowRay lights are designed for professional, commercial horticultural applications, where production is pushed to the maximum. Passive thermal dissipation ensures efficient heat transfer from LED and drivers, avoiding the main cause of LED degradation and failure: heat overload. GrowRay LEDs are the highest quality available. They have a longer life, and produce reliable light intensity and quality over the long haul. The thermal map (​above) shows how efficiently GrowRay fixtures manage heat. Within a half inch of the light bar, the vast majority of heat is dissipated.

Light Distribution and Intensity

PAR & PPFD

Plants depend on light, or Photosynthetically Active Radiation (PAR) to photosynthesize and grow. PAR is the light from violet to near infrared, the spectral range between 400 to 700nm. It includes the entire spectrum that we humans can see. And while human eyes are most sensitive to green at 555nm, plants use every photon in this range, regardless of its wavelength. The entire spectral range contributes to the photosynthetic process.​ The common unit of measurement for PAR is Photosynthetic Photon Flux Density (PPFD), measured in units of moles per square meter per second.


Plants can also use light from outside this range, from UV at 350nm to almost infrared at 750nm, as part of the development of new tissues and compounds​. This is called photomorphogenesis. Cannabis plants thrive in extremely bright, high PAR environments. They grow best with a bright, even light across the entire growing area. GrowRay lights are computer-designed and field-tested to provide an efficient, extremely bright light that is distributed evenly across the full growing area. This gives each plant the best opportunity to grow to its maximum in the shortest possible time, and to produce the most flower and best results.

Full-Spectrum Lights

Light Distribution and Intensity

PAR & PPFD

Plants depend on light, or Photosynthetically Active Radiation (PAR) to photosynthesize and grow. PAR is the light from violet to near infrared, the spectral range between 400 to 700nm. It includes the entire spectrum that we humans can see. And while human eyes are most sensitive to green at 555nm, plants use every photon in this range, regardless of its wavelength. The entire spectral range contributes to the photosynthetic process.​ The common unit of measurement for PAR is Photosynthetic Photon Flux Density (PPFD), measured in units of moles per square meter per second.


Plants can also use light from outside this range, from UV at 350nm to almost infrared at 750nm, as part of the development of new tissues and compounds​. This is called photomorphogenesis. Cannabis plants thrive in extremely bright, high PAR environments. They grow best with a bright, even light across the entire growing area. GrowRay lights are computer-designed and field-tested to provide an efficient, extremely bright light that is distributed evenly across the full growing area. This gives each plant the best opportunity to grow to its maximum in the shortest possible time, and to produce the most flower and best results.

Full-Spectrum Lights
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