VIVOSUN T4 Inline Duct Fan & Temperature Humidity Controller
If you're dialing in your grow tent environment, the VIVOSUN T4 4-inch inline fan with the GrowHub E42A+ controller is the setup you've been waiting for. Think of it as a smart thermostat for your plants—it automates climate control so you can stop fussing over dials and start focusing on growth.
The EC motor is noticeably quieter than traditional AC fans—at 28 dB, it won't disturb your home or workspace. Plus, it uses about 30% less energy. The built-in temperature and humidity probe tracks both inside and outside your tent, and the app calculates VPD in real time. You can set the fan to trigger automatically when temps or humidity hit custom thresholds.
Best of all, the E42A+ controller syncs with other VIVOSUN devices for fully automated light and fan schedules tailored to seedling, veg, or flower stages. The app lets you monitor and adjust from anywhere. Whether you're a first-time grower or a seasoned pro, this system simplifies the science without sacrificing precision.
Features
- Energy-Efficient & Quiet EC Motor
- Comprehensive Climate Monitoring
- Fully Automated Growing
- App Control & Remote Management
- Smart Auto-Triggers
- Versatile Application
- Easy & Flexible Installation
- Complete Ecosystem for All Growers
- Unified Smart Control
General specs
- Brand: VIVOSUN
- Model: T4
- Seller: Amazon
- ID: B0BQF568WN
- Airflow: 210 CFM
- Mounting: Ring anchors for hanging
- Motor Type: EC motor with PWM control
- Scheduling: Seedling, Vegetative, Flowering
- Application: Greenhouses, Hydroponic setups, Home ventilation, Attic cooling, Ducted HVAC
- Noise Level: 28 dB
- Fan Diameter: 4 inches
- Control Method: WiFi app control, GrowHub E42A+ controller
- Controller Model: E42A+
- Functions Sensor: Temperature, Humidity, VPD
- Power Consumption: 30% energy saving vs AC fan
- Compatible Ecosystem: VIVOSUN integrated grow equipment
- First listed by seller: 5/20/26
If you are interested in more details, you can find full information on the seller's page.
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VIVOSUN T4 Unified Smart Control
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| Brand | VIVOSUN | iPower | AC Infinity | AC Infinity | AC Infinity | VIVOSUN |
| Model | T4 | T6 | Controller 69 PRO | T3 | H05 | |
| Color | ||||||
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| Price | $115.99 | $121.94 | $149.00 | $89.99 | $89.99 | $103.38 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | May 24, 2026 | May 20, 2026 | May 27, 2026 | May 27, 2026 | May 29, 2026 | May 29, 2026 |
| Airflow | 210 CFM | 212 CFM | 402 CFM | 320 CFM | ||
| Motor Type | EC motor with PWM control | EC motor | PWM-controlled EC-motor | EC Motor | Dual Ball Bearing EC Motor | |
| Noise Level | 28 dB | 28 dB | 32 dBA | 33 dB(A) | ||
| Control | Temperature, Humidity, VPD Controller, WiFi Integrated App Control | WiFi Temperature Humidity Controller | Smart Control, App Control | |||
| Connectivity | Bluetooth, WiFi | WiFi App | Wi-Fi | |||
VIVOSUN T4 Unified Smart Control
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