Langy Solar Lights
42W 12" Solar Attic Fan with Smart Power Adapter+Remote
42W 12" Solar Attic Fan with Smart Power Adapter+Remote
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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.
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-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
Soil/Mulch Quantity Calculator
Soil/Mulch Quantity Calculator
Shipping & Returns
Shipping & Returns
SHIPPING:
Products marked with free shipping will be free shipping at checkout. Otherwise, bulk per cubic yard delivery fee per truck is the same amount whether the truck is at minimum or maximum capacity. You may want to know the following guidelines:
- One small truckload full capacity: 9yd soil, 9yd compost, 10yd mulch, 5yd fill, 7yd contractor mix.
- One large truckload maximum capacity: 20yd soil, 20yd compost, 20yd mulch, 18yd fill, 20yd contractor mix.
The best value is always a maximum truckload for your particular product.
We can mix loads in the small truck to bring two products at once with 8 to 9 cu yd maximum, depending on the products needed. You must contact us to request a quote in this circumstance.
If you order online we will contact you shortly after purchase to schedule your delivery day and time frame. We often can do same day deliveries with a small truck quantities, call 727-645-5289 or message us here to find out.
The small truck delivery is generally 1 to 3 work days notice M-S and the big truck delivery is generally 2 to 6 work days notice M-F. If you have a specific day and time in mind then it's best to make your purchase A.S.A.P in order
to help ensure the day and time you need is available.
The delivery fee is calculated during checkout based on product type (weight),
product quantity, size of truck(s) and number of truckloads needed.
If you prefer to communicate directly to a representative to get a quote, click here.
RETURNS:
There are no returns once the product is delivered. Most of our bulk garden supplies weigh 800 to 1600 lbs per cubic yard and require heavy trucks and equipment to move in bulk.
REFUNDS:
A refund can be processed if you cancel an order at least 2 hours before the start of your scheduled delivery day and time frame. There's no refund within 2 hours of your scheduled delivery day and time frame.
Dimensions
Dimensions
3'x3'x3' per cubic yard
27 cubic feet per cubic yard
Let customers speak for us
Love this Compost! My garden does great every year and it's because of
this great Compost Mix. I would not use anything else.
Great dirt and great communication
Started a new garden and it seems to be helping all of my new starter plantings
Product was great! Ordered some seeds as part of a gift along with a gardening apron. Was a quality item, arrived quickly and it was a big hit!
Super fast service and answered all my questions!
Great service each time I used them, 3 times now.
He delivered great organic topsoil the same day. Excellent subsurface for sod. Friendly and fast, very careful during delivery.
The mulch was great. No junk in it like the bagged stuff. AsS with all outdoor projects weather is a thing. They were understanding of delays and changes.. And when the day came for delivery, there was plenty of communication and showed up on time. Plus the price was right!
I am very happy with my soil purchase! Great company to do business with! I highly recommend!
It works well. I just wish it had some residual to it so I wouldn't have to spray every few weeks.
Good and high quality, best pants from a soil company ive ever bought.
If you want a quick turn around when ordering soil, this is your guy. If you want someone to dump soil where YOU want it, this is your guy. If you want someone to sell you good soil instead of sand and broken up pallets, this is your guy. It seems weird that a guy and his wife would be so excited about dirt, I know. But we were. It’s the beginning of a big transformation for our house. So we ordered this, I think on and Saturday and surprisingly he said he could deliver it on Monday! So Monday, we woke up and literally wished each other a happy dirt day. I went to work and sure enough, he showed up on time and dumped the dirt exactly where we were hoping. And when I got home I walked over and before I could get there, you could smell the organic material in the dirt. Our plants will love this. Excellent quality. Excellent transaction. Excellent service. Couldn’t be happier.
Happy with the soil and delivery was when expected, would use again