- 1x Simple Fan Speed Dimmer
- 1x ECS-9 Cable
TrolMaster Aero-Fan FRC-2 EC Fan Speed Dimmer
- 0 to 100 percent precise speed control for Aero-Fan EC series motors
- Digital EC communication to eliminate motor humming common with analog voltage dimmers
- Includes the ECS-9 cable for immediate integration with existing TrolMaster fans
- View More Details
Earn 18 points for shopping and get $0.18 off your next order. Join Harvest Club for free.
Free Shipping On Most Items*
To the lower 48
Transparent Pricing
Backed w/ price match guarantee
Secure Checkout
SSL encrypted payments
VOLUME PRICING
Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are opting for manual control because you need precise airflow but do not want the complexity of a full controller.
- You are syncing several fans to one knob because adjusting every unit by hand causes inconsistent air movement.
What We Found
- We tell buyers to skip the full controller if they just need a master knob to sync a whole bank of intake fans.
- The digital signal is much cleaner than analog, so you won't hear that annoying motor whine at low speeds.
What Users Say
- Users who manage multiple tents say this module finally let them synchronize their intake speeds from one spot.
- Buyers who switched from analog controllers report their motors finally run cool and quiet at the lowest settings.
TrolMaster Aero-Fan FRC-2 EC Fan Speed Dimmer
Managing multiple fans in a large grow space often leads to inconsistent airflow and tedious manual adjustments. The TrolMaster Aero-Fan FRC-2 Ventilation Fan Speed Dimmer solves this by centralizing control, allowing you to synchronize your entire ventilation fan setup through a single, intuitive interface. Whether you are running a small tent or a large-scale facility, maintaining uniform air movement is critical for plant health and yield consistency.
This standalone module provides seamless 0–100% speed adjustment for your TrolMaster Aero-Fan series. By utilizing advanced digital EC communication instead of traditional analog voltage dimming, the FRC-2 ensures your motors run efficiently and quietly without the humming or signal lag common in basic controllers. It is a perfect alternative for those who do not yet require the complex automation of the TrolMaster FRC-1 Environmental Control but still demand professional-grade precision.
What's Included
Features
🎛️
0–100% Precise Speed Control
Smooth, accurate knob adjustment for airflow tuning without needing a full controller or app.
👥
Multi-Fan Group Control
Group and sync multiple Aero-Fan EC units simultaneously for consistent speed across your entire grow zone.
📡
Digital EC Communication
High-fidelity digital signals prevent motor humming and signal lag, ensuring seamless performance compared to analog dimmers.
🔌
ECS-9 Ready
Includes the necessary ECS-9 cable for immediate integration into the TrolMaster ecosystem and compatible fans.
Specifications
| Specification | Value |
|---|---|
| Input Voltage | 12V |
| Current | 0.1A |
| Speed Control Range | 0–100% |
| Compatible Fan Type | Aero-Fan EC Series |
| Operating Temperature | 32–104°F (0–40°C) |
| Operating Humidity | ≤90% RH |
| Dimensions | 6.70 × 3.54 × 2.12 in |
| Net Weight | 0.265 lbs |
Support & Manuals
FAQs
Which fans are compatible with the FRC-2?
The FRC-2 is designed for use with TrolMaster Aero-Fan Electronically Commutated (EC) fans. EC fan compatibility is required for the digital communication protocol the FRC-2 uses to deliver precise speed control; standard AC fans are not compatible with this dimmer.
How many fans can one FRC-2 control simultaneously?
The FRC-2 supports grouping multiple Aero-Fan EC fans under a single module. All fans in the group will respond to the same knob adjustment simultaneously, making it straightforward to manage uniform airflow across an entire zone from one control point.
Does the FRC-2 require a TrolMaster environmental controller to operate?
No. The FRC-2 is a standalone speed dimmer that operates independently via its onboard knob, with no environmental controller required. It is an ideal solution for growers who want precise multi-fan speed control without investing in a full system.
How is the FRC-2 different from using a standard fan speed controller?
Standard fan speed controllers typically use analog voltage reduction, which can cause inconsistent speeds and motor humming. The FRC-2 communicates via digital signal directly to the EC motor, delivering accurate and seamless speed adjustments with no signal degradation.
What is the ECS-9 cable included with the FRC-2 used for?
The ECS-9 cable connects the FRC-2 dimmer to compatible Aero-Fan EC fans, carrying the digital control signal that enables precise speed adjustment. It is the standard connection cable used throughout the TrolMaster Aero-Fan ecosystem.
Happy To Help
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.
10+
Years of Specialist Knowledge
4.8★
Over 1,900 Verified Reviews
50,000+
Growers Served
120+
Top Equipment Brands in Stock