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Grower's Choice LED grow light controller with two groups, ON/OFF status, wattage, timers, and temperature.
Grower's Choice master controller display showing Group A ON (36%, 900W) and Group B OFF.
Grower's Choice LED grow light controller with two groups, ON/OFF status, wattage, timers, and temperature.
Grower's Choice master controller display showing Group A ON (36%, 900W) and Group B OFF.

Grower's Choice LED Grow Light Master Controller

Reduced Price:
$399.00 USD $374.00 USD$399.00 USD
Or
Pay as little as
$37400/mo
for a term that suits you, up to 36 months. Learn More

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To calculate 10 percent of a number, simply divide it by 10 or move the decimal point one place to the left. For example, 10 percent of 230 is 230 divided by 10, or 23.
pricePoints: 374
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1
percentage: $3.74
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MODEL: GCLC001
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Grower's Choice LED Grow Light Master Controller

Tired of manually adjusting multiple lights? The Grower's Choice Master Controller is the central command hub you need, simplifying control and unlocking the full potential of your lighting setup. This is one of the most essential grow light controllers for any serious cultivator.

This powerful, dual-channel controller allows you to manage up to 200 fixtures across two separate, independently programmed grow areas. Daisy-chain up to 100 lights per zone, making it perfect for managing complex setups with various LED grow lights like the popular ROI-E720 LED Grow Light.

Navigate settings with ease using the intuitive LCD touchscreen. The controller's advanced timer lets you simulate natural sunrise and sunset cycles by gradually dimming and brightening your lights, reducing stress on your plants. For ultimate peace of mind, built-in dual thermal probes monitor your grow room temperature and will automatically dim the lights to protect your crop from excessive heat in case of an HVAC failure.

What's Included

  • Master Controller
  • Power Adapter (DC5V/2000mA)
  • 2 x 5m Temperature Sensor Cords
  • 2 x 5m Controller Wires (RJ9 to RJ14)
  • User Manual

Features

🌅
Sunrise & Sunset Simulation

Reduces plant stress by mimicking natural light cycles.

👆
Intuitive LCD Touchscreen

Easily navigate settings and schedules with a user-friendly interface.

➗
Dual Zone Control

Manage up to 200 lights across two independent grow areas (100 per zone).

🌡️
Thermal Protection

Dual probes monitor temperature and automatically dim lights to prevent crop damage.

Specifications

Specification Value
Output Range 10% - 115%
Number of ballasts per output 100 Max
Max cable length per group 100M
Control Voltage Outputs 2 groups, A/B
Temperature Sensor 2 groups, A/B
Overheat Protection Yes
Sunset/Sunrise Period Yes
Setup ballast type 1000W/945W/750W/630W/600W/500W/315W
Alarm Port 2 groups, NO/NC
ECM Port 2 groups, A/B
Input Voltage 5VDC / 200mA
Weight 0.5kg
Warranty 3 Years

Support & Manuals

Warranty

The Grower's Choice Master Controller comes with a three-year warranty. This warranty does not apply to second-hand lamps or lamps purchased pursuant to casual sales. All warranty claims must be directed to the retail store where the lamp was purchased. Except as provided in this warranty, Grower’s Choice makes no representation or warranty of any kind, express, implied or statutory, as to any matter whatsoever, including without limitation merchantability, fitness for a particular purpose, non-infringement or otherwise. Grower’s Choice shall not under any circumstances be responsible for any loss or damage, indirect, special, ordinary, exemplary, consequential or otherwise, arising out of the purchase or use of the lamps, except as expressly provided in this warranty. Under no circumstances shall Grower’s Choice’s liability of any kind exceed the purchase price of the lamp in question.

FAQs

How many lights can the Master Controller manage?+

The Grower's Choice Master Controller can manage a total of 200 lights. It features two independent channels (zones), each capable of controlling up to 100 daisy-chained fixtures.

Can I control two separate grow rooms with one controller?+

Yes, absolutely. The dual-channel design allows you to set independent lighting schedules and temperature parameters for two separate grow areas, making it perfect for managing both a vegetative and a flowering room from a single device.

What is the sunrise/sunset feature?+

This feature gradually ramps the light intensity up at the beginning of your light cycle and ramps it down at the end. This mimics natural daylight changes, which can help reduce shock and stress for your plants, leading to healthier growth.

How does the overheat protection work?+

The controller includes two thermal probes to place in your grow areas. If the temperature exceeds a safety limit that you set, the controller will automatically dim or shut off the connected lights to prevent heat damage to your plants, providing a critical failsafe in case of HVAC or ventilation failure.

Is this controller compatible with all Grower's Choice lights?+

This controller is designed to work seamlessly with Grower's Choice lighting systems that use the RJ9/RJ14 controller ports. It is fully compatible with popular models like the ROI-E900 and GHS-730. We always recommend checking the specifications of your specific light fixture for compatibility.

Where can I learn more about setting up grow lights?+

For a comprehensive overview of different lighting configurations and best practices, we recommend reading our guide on the best indoor grow light setups. It provides valuable insights that can help you maximize your yield.

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

  • Most orders are processed within 24-48 hours after being placed.
  • Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

  • USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
  • FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
  • UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

  • These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
  • For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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