Grower Provided LED vs HPS Crop Comparisons.
The following data was provided by FGI customers as part of our ongoing research into light spectrum, intensity and uniformity and it's effect on crop yield, energy use and potency.
No growers were compensated for these tests.
The results are ranked by Grams Per Watt starting with the lowest and sorted to the highest efficiency. We use GPW because it levels the playing field between different sized grow rooms and plant counts. A high GPW grow is somewhat driven by strain but also by maximizing all the variables in the grow room. GPW is a good measure of plant yield versus energy used. A low GPW could be strain related but also affected by growing style and other variables (small plants versus large plants etc). Growers names are kept confidential.
Cinex grown under the FGI Lightpanel 500 LED
GROWER Confidential |
STRAIN Cinex |
MEDIUM Promix |
FLOWERING TIME 58 days |
NUTRIENTS Proprietary |
TEST AREA CANOPY SIZE 32 sf |
NUMBER OF PLANTS 18 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 47 WPSF |
POTENCY 21.2% |
FINAL WEIGHT (GRAMS) 1,878 |
GRAMS PER SQ FT 59 |
GRAMS PER PLANT 104 |
GRAMS PER W 1.26 |
GRAMS PER 1000W compare 1,260 |
POUNDS PER 4x4 2.78 lbs |
AK-47 Grow Under the FGI Lightpanel 500
GROWER Confidential |
STRAIN AK-47 |
MEDIUM Coco |
FLOWERING TIME 57 days |
NUTRIENTS Proprietary |
ROOM CANOPY SIZE 355 sf |
NUMBER OF PLANTS 96 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 51 WPSF |
POTENCY 24.5% |
FINAL WEIGHT (GRAMS) 22,955 |
GRAMS PER SQ FT 65 |
GRAMS PER PLANT 239 |
GRAMS PER W 1.28 |
GRAMS PER 1000W compare 1,280 |
POUNDS PER 4x4 2.82 lbs |
Oregon Purple Diesel grown under the FGI Lightpanel 700 LED
GROWER Confidential |
STRAIN Oregon Purple Diesel |
MEDIUM Coco |
FLOWERING TIME 56 days |
NUTRIENTS Emerald Harvest |
ROOM CANOPY SIZE 384 sf |
NUMBER OF PLANTS 90 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 43 WPSF |
POTENCY 20.5% |
FINAL WEIGHT (GRAMS) 19,976 |
GRAMS PER SQ FT 52 |
GRAMS PER PLANT 222 |
GRAMS PER W 1.3 |
GRAMS PER 1000W compare 1,300 |
POUNDS PER 4x4 2.86 lbs |
Green Crack grown under the FGI Lightpanel 700 LED
GROWER Confidential |
STRAIN Green Crack |
MEDIUM Promix/Perlite |
FLOWERING TIME 54 days |
NUTRIENTS Cutting Edge |
ROOM CANOPY SIZE 576 sf |
NUMBER OF PLANTS 216 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 44 WPSF |
POTENCY 29.5% |
FINAL WEIGHT (GRAMS) 31,780 |
GRAMS PER SQ FT 55 |
GRAMS PER PLANT 147 |
GRAMS PER W 1.3 |
GRAMS PER 1000W compare 1,300 |
POUNDS PER 4x4 2.86 lbs |
Sunny D grown under the FGI Lightpanel 700 LED
GROWER Confidential |
STRAIN Sunny D |
MEDIUM Living Soil |
FLOWERING TIME 58 days |
NUTRIENTS Living Soil |
TEST AREA CANOPY SIZE 32 sf |
NUMBER OF PLANTS 18 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 44 WPSF |
POTENCY 21.5% |
FINAL WEIGHT (GRAMS) 1,816 |
GRAMS PER SQ FT 57 |
GRAMS PER PLANT 101 |
GRAMS PER W 1.3 |
GRAMS PER 1000W compare 1,300 |
POUNDS PER 4x4 2.86 lbs |
Sunset Sherbet grown under the FGI Lightpanel 500
GROWER Confidential |
STRAIN Sunset Sherbet |
MEDIUM Coco |
FLOWERING TIME 56 days |
NUTRIENTS Proprietary |
ROOM CANOPY SIZE 355 sf |
NUMBER OF PLANTS 96 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 51 WPSF |
POTENCY 23% |
FINAL WEIGHT (GRAMS) 26,315 |
GRAMS PER SQ FT 74 |
GRAMS PER PLANT 274 |
GRAMS PER W 1.46 |
GRAMS PER 1000W compare 1,460 |
POUNDS PER 4x4 2.90 lbs |
Gorilla Glue #4 grown under the FGI Lightpanel 700
GROWER Confidential |
STRAIN Gorilla Glue #4 |
MEDIUM 707 |
FLOWERING TIME 58 days |
NUTRIENTS Botanicare |
TEST AREA CANOPY SIZE 32 sf |
NUMBER OF PLANTS 10 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 44 WPSF |
POTENCY 20.2% |
FINAL WEIGHT (GRAMS) 2,057 |
GRAMS PER SQ FT 63 |
GRAMS PER PLANT 206 |
GRAMS PER W 1.5 |
GRAMS PER 1000W compare 1,500 |
POUNDS PER 4x4 2.92 lbs |
Platinum Cookies grown under the FGI Lightpanel 700 LED
GROWER Confidential |
STRAIN Platinum Cookies |
MEDIUM Promix/perlite |
FLOWERING TIME 57 days |
NUTRIENTS Proprietary |
TEST AREA CANOPY SIZE 32 sf |
NUMBER OF PLANTS 18 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 42 WPSF |
POTENCY 23% |
FINAL WEIGHT (GRAMS) 2,270 |
GRAMS PER SQ FT 71 |
GRAMS PER PLANT 126 |
GRAMS PER W 1.6 |
GRAMS PER 1000W compare 1,590 |
POUNDS PER 4x4 2.94 lbs |
Blackberry Kush grown under the FGI Uniformity Pro 640 LED
GROWER Confidential |
STRAIN Blackberry Kush |
MEDIUM Fox Farm/perlite |
FLOWERING TIME 57 days |
NUTRIENTS House and Garden |
TEST AREA CANOPY SIZE 50 sf |
NUMBER OF PLANTS 8 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 50 WPSF |
POTENCY 23.3% |
FINAL WEIGHT (GRAMS) 4,380 |
GRAMS PER SQ FT 88 |
GRAMS PER PLANT 548 |
GRAMS PER W 1.76 |
GRAMS PER 1000W compare 1,752 |
POUNDS PER 4x4 3.05 lbs |
Trainwreck x Jack Herer grown under the FGI Lightpanel 500 LED
GROWER Confidential |
STRAIN Trainwreck/Jack Herer |
MEDIUM Fox Farm/Perlite |
FLOWERING TIME 56 days |
NUTRIENTS House and Garden |
TEST AREA CANOPY SIZE 50 sf |
NUMBER OF PLANTS 5 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 50 WPSF |
POTENCY 22% |
FINAL WEIGHT (GRAMS) 4,840 |
GRAMS PER SQ FT 97 |
GRAMS PER PLANT 968 |
GRAMS PER W 1.94 |
GRAMS PER 1000W compare 1,936 |
POUNDS PER 4x4 3.12 lbs |
Kosher Kush grown under the FGI Lightpanel 700 LED
GROWER Confidential |
STRAIN Kosher Kush |
MEDIUM Coco |
FLOWERING TIME 57 days |
NUTRIENTS Grower confidential |
TEST AREA CANOPY SIZE 16 sf |
NUMBER OF PLANTS 9 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 42 WPSF |
POTENCY 24% |
FINAL WEIGHT (GRAMS) 1,090 |
GRAMS PER SQ FT 93 |
GRAMS PER PLANT 121 |
GRAMS PER W 2.12 |
GRAMS PER 1000W compare 2,120 |
POUNDS PER 4x4 3.16 lbs |
Amnesia Mystery grown under the FGI Lightpanel 700
GROWER Confidential |
STRAIN Amnesia Mystery |
MEDIUM Coco |
FLOWERING TIME 57 days |
NUTRIENTS Grower Proprietary |
TEST AREA CANOPY SIZE 16 sf |
NUMBER OF PLANTS 9 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 44 WPSF |
POTENCY 27% |
FINAL WEIGHT (GRAMS) 1,485 |
GRAMS PER SQ FT 93 |
GRAMS PER PLANT 165 |
GRAMS PER W 2.10 |
GRAMS PER 1000W compare 2,100 |
POUNDS PER 4x4 3.20 lbs |
Carnival Kush grown under the FGI Lightpanel 700
GROWER Confidential |
STRAIN Carnival Kush |
MEDIUM Coco |
FLOWERING TIME 56 days |
NUTRIENTS Proprietary |
ROOM CANOPY SIZE 355 sf |
NUMBER OF PLANTS 96 |
TEST AREA WATTS PER SQUARE FOOT (WPSF) 32 WPSF |
POTENCY 25% |
FINAL WEIGHT (GRAMS) 23,608 |
GRAMS PER SQ FT 67 |
GRAMS PER PLANT 246 |
GRAMS PER W 2.11 |
GRAMS PER 1000W compare 2,110 |
POUNDS PER 4x4 3.22 lbs |