Real world HPS vs LED Indoor Grow Room Test Results: Narnia

LED vs HPS GROW ROOM TEST RESULTS

Forever Green Indoors presents the results on Narnia, a cross between Jack Herer and Trainwreck, in our ongoing series of real world results using commercial grade LED lighting. 

RESULTS

41.6 g INCREASE IN YIELD (16sf)
3% INCREASE IN DRY WEIGHT YIELD
.69 GRAMS PER WATT INCREASE
35% LED ENERGY SAVINGS

 

LED
LED ROOM WATTS 2,490 watts
LED ROOM W/SF 50 W/sf
POTENCY 22%
FINAL WEIGHT 4,840 grams
GRAMS PER SF 97 g/sf
GRAMS PER PLANT 968
POUNDS PER PLANT 2,13
GRAMS PER W 1.94
GRAMS PER 16sf AREA 1,549
POUNDS PER 16sf AREA 3.41
DIMLUX + Boost HPS
HPS ROOM WATTS 3,750 watts
LED ROOM W/SF 75 W/sf
POTENCY 20.1%
FINAL WEIGHT 4,710 grams
GRAMS PER SF 94 g/sf
GRAMS PER PLANT 942
POUNDS PER PLANT 2.07
GRAMS PER W 1.26
GRAMS PER 16sf AREA 1,507
POUNDS PER 16sf AREA 3.32

GROWER - Confidential

ROOM CANOPY - 50 sf

NUMBER OF PLANTS - 5 plants

MEDIUM - Fox Farm/Perlite

FLOWERING TIME - 56 days

NUTRIENTS - House and Garden

ABOUT THIS STRAIN:  

Narnia is the stimulating sativa-dominant cross of Jack Herer and Trainwreck. The leaves are tightly curled leaves and a rich shade of forest green with bright, vibrant yellow pistils. The surfaces of the bud are coated with glassy white trichomes, making this strain extremely sticky.

INSTALLATION NOTES:

This test consisted of multiple comparative tables using
(3) Dimlux 1200 W Boost fixtures over a 50 sf table against (5) FGI Lightpanel 500 W fixtures over the same 50sf table.  

2500 watts of LED vs. 3750 watts of HPS

GROWER'S NOTES:


LEDs produced a better product

Trainwreck crossed with Jack Herer is an outstanding commercial production cultivar.  Although normally a 9 week cycle, this cultivar has the power to produce over 20% THC and crushing yields in just 8 weeks.  Combining a “schwazzing” style and heavy light levels have proven to be a winning recipe for this cultivator.

The results show a 36% savings with the LEDs in the amount of grams per watt of energy used, a 10% increase in potency (22% vs. 20% for HPS) and overall a more appealing final product.

Big yields and big buds from this big, full spectrum fixture.

 

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These growers receive no monetary compensation for sharing these results and Forever Green Indoors would like to thank all parties involved for making this data available for the cultivation community to review.


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