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Langy Solar Lights

42W 12" Solar Attic Fan with Smart Power Adapter+Remote

42W 12" Solar Attic Fan with Smart Power Adapter+Remote

Regular price $263.69 USD
Regular price $426.69 USD Sale price $263.69 USD
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Premium Solar Attic Fan

LANGY 42W Solar Attic Fan

Reduce HVAC Costs Up to 40% & Protect Your Home Year-Round

Key Features & Benefits


Slash HVAC Costs

Summer: Reduces attic temperatures by up to 40°F, lowering AC workload and energy bills.

Winter: Prevents moisture buildup, reducing mold, rot, and insulation damage risks.


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.


Quite & Maintenance-Free

42W high-efficiency solar panel provides quiet, clean energy operation.

Low noise level and no maintenance required


Built to Last

Steel support parts guarrantee solid structures and aluminum alloy frame delivers lightweight and conveniences

Hybrid solar + AC power ensures non-stop airflow 24/7.

10-Year Limited Warranty

Smart Thermostat Operation

The fan features intelligent thermostat control to optimize energy efficiency and maintain ideal attic conditions automatically.

73°F OFF
77°F ON


Cool
Comfortable
Hot

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-42
Solar Panel Power 18V/42W
Solar Panel Size 20.2" x 17.75"
Airflow Up to 1200 CFM
Coverage Area 2,200 sq/ft
Adapter Voltage 100-240V AC, 50/60 Hz
Fan Speeds 8 levels
Controls Built-in Preset Thermostat
Motor Type DC 30W
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-42
Solar Panel Power 18V/42W
Solar Panel Size 20.2" x 17.75"
Coverage Area 2,200 sq/ft
Solar Panel Size Up to 1200 CFM
Adapter Voltage 100-240V AC, 50/60 Hz
Fan Speeds 8 levels
Controls Built-in Preset Thermostat
Motor Type DC 30W
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 ※

24/7 Hybrid Power Operation

The LANGY 42W's hybrid power system ensures continuous operation regardless of weather conditions, providing year-round attic ventilation.


Daytime Operation

Powered by high-efficiency solar panels using clean, renewable energy

42W solar panel provides ample power for maximum airflow


Night & Cloudy Days

Automatically switches to AC power when solar is insufficient or unavailable.

The adapter is a great supplement for the solar supply. And they can work independently.

The hybrid power system ensures your attic stays ventilated day and night, 365 days a year.

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

Description

Specifications

SKU:SF-42W

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