Resources

Grower's Choice ROI-E Series LEDS and Their Designed Applications

Thank you to all of our affiliates who are supporting the release of our newest commercial grade LED fixtures, the TSL-800 and ROI-E Series. Growers Choice would also like to clarify, none of our new fixtures are direct replacements of our previous LED models.

The ROI-E200

The ROI-E200 is the newest member of the ROI-E series. With it’s versatile compact design and high intensity 4k spectrum this fixture is excellent for commercial cultivators that need reliable low profile lights that perform excellent in all stages of growth and excel in veg. The ROI-E200 was also designed to be a functional seed to flower fixture, for the hobbyist looking to cultivate a quality garden in limited space.

The ROI-E420

The ROI-E420 was specifically design with the hobbyist “in tent” applications and cultivators who need a compact led fixture that produces high photon output. The e420 is great for tent grows as it’s compact design relieves grow space while still providing high energy output to the canopy producing impressive yields during bloom. The E420 is also great when used as a efficient veg fixture in large scale and commercial cultivation's as the 3k full phase spectrum provides all the PAR needed for all stages of plant life. It is not necessary to run CO2 with the ROI-E420. However, supplemental CO2 between 450-800 ppm will be beneficial and increase yield potential.

The ROI-E680

The ROI-E680 is the perfect balance of size and performance for the experienced hobbyist and professional cultivators alike. The E680 is a more portable and light weigh fixture accommodating cultivation's with modest space availability, tents, vertical gardens and any commercial application facilitating 4x4 canopies. The ROI-E680 is a very powerful fixture and a proven versatile workhorse in any garden, producing heavy yields and high quality harvests. Growers Choice does recommend the E680 be used with CO2 supplementation to promote a healthy cultivation and the largest yield potential.Without using CO2 the grower may be introducing more light than the plants can process, possibly causing stunted growth or light damage. Know your garden and provide light accordingly.

The ROI-E720

The ROI-E720 is a user friendly commercial grade fixture. However, Grower’s Choice does not recommend the E720 for inexperienced growers or tent applications. The E720 is designed as a high output fixture for commercial cultivation's, emitting nearly the same PPF as a standard 1000w DE HPS fixture and lamp. With intense PPF, 3k full phase spectrum and balanced PPFD the ROI-E720 has the potential to produce the highest yields and superior quality. GC highly recommends this fixture be used in professional, environmentally controlled cultivation’s that supplement CO2. Without using CO2 the grower may be introducing more light than the plants can process, possibly causing stunted growth or light damage. Know your garden and provide light accordingly.

Disclaimer: These are Grower’s Choice’s general recommendations but it is up to the cultivator to narrow down the range according to their specific needs and genetics.

ROI-E Series and PFS Recommended Heights
Propagation Height from Canopy
Vegetative Height from Canopy
Flower Height from Canopy
PFS lighting
PFS
6"-12"
Intensity: 
N/A
N/A
Intensity: 
N/A
N/A
Intensity: 
N/A
ROI-E200 LED lighting
ROI-E200
24"-36"
Intensity: 25%
12"-24"
Intensity:
50%-75%
6"-12"
Intensity: 100%
ROI-E420 LED lighting
ROI-E420
36"-48"
Intensity: 25%
24"-36"
Intensity:
50%-75%
6"-20"
Intensity: 100%
ROI-E680s LED lighting
ROI-E680S
36"-48"
Intensity: 25%
24"-36"
Intensity:
50%-75%
6"-20"
Intensity: 100%
ROI-E720 LED lighting
ROI-E720
N/A
Intensity: 
N/A
24"-36"
Intensity: 
50%-75%
6"-20"
Intensity:
80%-100%
ROI-E900
N/A
Intensity: 
N/A
24"-36"
Intensity: 
50%-75%
6"-20"
Intensity: 
80%-100%
GHS-730
N/A
Intensity: 
N/A
60"
Intensity: 
50%-75%
60"
‍Intensity: 
75%-100%
TSL-800
N/A
Intensity:
N/A
N/A
Intensity:
N/A
48"-60"
Intensity:
75%-100%
FAQ

Frequently Asked Questions

Can I purchase directly from Grower's Choice?

Grower's Choice does not sell directly to the public. Please take a look at our store locator for a retailer near you.

What cord comes in the box?

Your Grower's Choice product will come with an M25 240V pigtail with a 240v/120v adaptor unless specified otherwise. You can order anything from 108v-277v pigtails.

What is the correct RJ cord (Communication cord) to use with these fixtures?

The correct RJ cord is an RJ11 or RJ14 flat ribbon 4 pin cord. These lights communicate through a 0-10V signal.

How do I unlock the ROI-E720 boost mode?

You can unlock an extra 10% of performance from the ROI-E720 by using a controller like the Grower's Choice Master Controller that can go over 100% on the dimming setting and setting it 110%.

Can you alter the Spectrum of these fixtures?

Grower's Choice fixtures do not have the ability to alter their set spectrums.

What other controllers can be used with these fixtures?

If you wish to use a third party controller, mechanical timers work well with all of our fixtures. As far as digital controllers Grower's Choice recommend the Trolmaster Hydro X (You will need an LMA14 or "Adapter F").