LED vs HPS Grow Light Test Results: Case Study on Green Crack Strain Shows Superior Yield Using LED Lighting

LED vs HPS GROW ROOM TEST RESULTS

Forever Green Indoors presents the results on Green Crack, in our ongoing series of real world results using commercial grade LED lighting. 

RESULTS

23% YIELD INCREASE USING LED
226.6 g INCREASE IN YIELD (16sf) USING LED
.072 INCREASE IN GRAMS PER WATT
52% SAVINGS IN ENERGY COST

 

 

GREEN CRACK CASE STUDY COMPARISON 

LED

LED ROOM WATTS
LED ROOM W/sf
POTENCY
FINAL WEIGHT
GRAMS PER Sq Ft
25,020 watts
43 W sf
27.8%
34,958 grams
61 g/sf
GRAMS PER PLANT
POUNDS PER PLANT
GRAMS PER W
GRAMS PER 16 sf Area
POUNDS PER 16sf AREA
162
0.36
1.40
971
2.14

HPS

HPS ROOM WATTS
HPS ROOM W/SF
POTENCY
FINAL WEIGHT
GRAMS PER SQ FT
39,600 watts
69 W sf
26.3%
26,799 grams
47 G/sf
GRAMS PER PLANT
POUNDS PER PLANT
GRAMS PER WATT
GRAMS PER 16sf AREA
POUNDS PER 16 sf AREA
124
0.27
0.68
744
1.64

 

 

Green Crack using FGI LED Lighting
GROWER - Confidential

ROOM CANOPY - 576 sf

NUMBER OF PLANTS - 216

MEDIUM - Promix/Perlite

FLOWERING TIME - 54 days

NUTRIENTS - Cutting Edge

 

 

ABOUT THIS STRAIN:  


Green Crack is a powerful and fast acting strain. It's one of the most popular strains for consumers, and often used to fight fatigue, stress and depression.

This is a sativa-dominant hybrid that reacted beautifully under FGI’s LED lighting. Although some indica dominate phenos exist, most are heavy leaning sativa cuts with an uncommonly fast finishing time (for a sativa).  This particularly fragrant phenotype has a scent and taste that reminds the user of mangoes. It's a g reat strain for being out with friends or when you need that burst of energy to get a project done.

INSTALLATION NOTES:

This room contains the FGI Lightpanel 700VB, our largest, most powerful broad spectrum LED flower lamp. When used as directed the FGI Lightpanel 700VB provides the full spectrum of the sun and maximum energy through the entire plant growth phase.

GROWER'S NOTES:

High potency and high yields have proven that Green Crack is an excellent choice for large scale cultivation.  This grower chose the FGI Lightpanel 700VB for maximum light spread over the canopy. The results here prove that the mounting height and distance used can exceed expectations for yield and potency for this popular strain. This strain was particularly strong under the FGI Lightpanel 700VB.

The strain usually has top THC levels reaching 24%, however under the FGI Lightpanel 700VB this harvest achieved over 27%, making this an end product that consumers look for. 

We have found this strain responds well to increased light intensity early in the flower cycle and pushing canopy levels to higher PPFD by the end of week 2 has helped with yields.  Green Crack is a fast finisher and has shown to provide excellent THC numbers even when taken down as early as week 7!

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

FGI Lightpanel 700 V/B LED - Our most intense broad spectrum LED grow light for maximum cannabis yield

 

ON SALE NOW
The FGI Lightpanel 700VB is on sale now!
To take advantage of this great discount, click
HERE

 

 

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.

 

Green Crack using FGI LED Lighting

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