Introduction

GrowRay Technologies, in partnership with commercial cultivator Jake Shockey of SPEnterprises in Michigan, performed and concluded a comprehensive comparative LED yield study between two identical grow rooms:

One containing all GrowRay LED fixtures and the other containing all Double Ended High Pressure Sodium (DE HPS) fixtures. No supplemental or intra-canopy lighting was used, and supplemental CO2 was used.

Nutrient recipe in Deep Water Culture delivery was identical for each room, as was all associated cultivation infrastructure.

Results

Dry Yield

LUMIGROW: 1.4 LBS/LIGHT

GAVITA: 1.7 LBS/LIGHT

GROW RAY: 2.2 LBS/LIGHT

Proper use of GrowRay LED, with of SOPs, typically yields 3+ LBS/Light and over 75g/FT2

Summary

The yield and potency study hypothesis and primary goal was to prove that Grow Ray Technologies’ LED fixtures, when specifically paired with the Company’s LED Whole-Systems Yield Optimization Protocols (SOP’s), would:

• Out-perform and out-produce legacy DE HPS in a head-to-head, strain-to-strain controlled grow
• Increase plant health, visual and physical quality (including trichome production and density)
• Validate Optimization Protocols
• Provide SPEnterprises with a fantastic, marketable crop and exceed expectations

The test concluded in June 2020, with results that did exceed expectations: The Grow Ray 715W LED room produced substantially more dry-weight yield than 1000W DE HPS lighting.