LANGY 55W Solar Attic Fan
Reduce HVAC Costs Up to 40% & Protect Your Home Year-Round
Key Features & Benefits
Slash HVAC Costs
Winter: Prevents moisture buildup, reducing mold, rot, and insulation damage risks.
Summer: Reduces attic temperatures by up to 40°F, lowering AC workload and energy bills.
Smart Thermostat Control
Built-in preset thermostat for automatic operation:
- Automatically starts at 77°F
- Automatically stops at 73°F
This feature can be disabled for manual control.
Quiet & Maintenance-Free
55W high-efficiency solar panel provides quiet, clean energy operation.
Low noise level and no maintenance required.
Built to Last
Steel support parts guarantee solid structures and aluminum alloy frame delivers lightweight and convenience.
Smart Thermostat Operation
The fan features intelligent thermostat control to optimize energy efficiency and maintain ideal attic conditions automatically.
The fan automatically activates when attic temperature reaches 77°F and stops when it cools to 73°F, maintaining optimal conditions without manual intervention.
Technical Specifications
| Model | SF-55-S |
|---|---|
| Solar Panel Power | 18V/55W |
| Solar Panel Size | 22" x 22" |
| Airflow | Up to 1200 CFM |
| Coverage Area | 2,200 sq/ft |
| Fan Speeds | 6 levels |
| Controls | Built-in Preset Thermostat |
|---|---|
| Motor Type | DC 25W |
| Cap Dimension | 18.25" x 18.25" |
| Rough Cut-out | 12.3" x 12.3" |
| Flashing size | 22" x 22" |
| Remote control distance | 65ft |
| Warranty | 10 Years |
| Model | SF-55-S |
|---|---|
| Solar Panel Power | 18V/55W |
| Solar Panel Size | 22" x 22" |
| Airflow | Up to 1200 CFM |
| Coverage Area | 2,200 sq/ft |
| Fan Speeds | 6 levels |
| Controls | Built-in Preset Thermostat |
| Motor Type | DC 25W |
| Cap Dimension | 18.25" x 18.25" |
| Rough Cut-out | 12.3" x 12.3" |
| Flashing size | 22" x 22" |
| Remote control distance | 65ft |
| Warranty | 10 Years |
DIY-Friendly Installation
Installation is intuitive and a breeze
Video Guide
Step-by-step installation video
All Hardware
Everything included
Leak-Proof
Watertight design
Quick Setup
1-2 hours installation
We Welcome Contractors!
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Providing Expert Installation Services in Dallas Area!
BOOK NOW!Frequently Asked Questions
How many solar attic fan do I need?
Please measure the square footage of your attic. Here's a calculation example:
- Attic Size: 1,200 sq. ft.
- CFM Needed: 1,200 CFM (1 CFM per sq. ft.)
- Fan Capacity: Our fan moves 1,200 CFM, you would need about 1 fan. (1,200 CFM ÷ 1,200 CFM per fan = 1 fan)
What's the warranty of this fan?
We offer a 1-year free replacement and a 10-year limited warranty.Learn more.
Can I install it by myself?
Sure you can. No wiring is required. And the voltage(18V) is low and safe.
How long does shipping take?
We process orders within 1-2 business days. Free shipping takes 2-5 business days with UPS.
What is your return policy?
We offer a 30-day money-back guarantee on all products. Items must be in original condition. Please contact our support team to initiate a return.