SUNYIMA 20W Solar Fan Kit with 3600mAh Battery — Dual Waterproof Exhaust Fans for Coops & Sheds, IP65 Durable

SUNYIMA's 20W solar fan kit is a self-contained ventilation system: a 20W solar panel charges a 3600mAh battery to power two weatherproof exhaust fans for continuous airflow in coops, sheds, greenhouses and other outdoor spaces.

This kit combines a high-efficiency 20W solar panel, a built-in 3600mAh rechargeable battery and twin 12×12 cm exhaust fans on a compact mounting bracket. Designed for off-grid ventilation, the unit runs from sunlight while storing energy so the fans can continue operating after dark or during cloudy weather. Its rugged ABS housing, IP65 rating and protective metal mesh make it suitable for dusty, damp and outdoor conditions.

How does this solar fan keep an animal coop or greenhouse ventilated?

The SUNYIMA system moves air continuously to lower heat, reduce humidity and remove odors without wiring to mains power. Daylight powers the fans directly and recharges the internal battery; when sunlight is insufficient the battery supplies stored power so ventilation continues.

• 20W solar panel captures sunlight and charges the 3600mAh battery
• Two exhaust fans rotate up to 3,000 RPM for steady airflow
• Battery provides up to about 8 hours of runtime after full daytime charge
• 9.84 ft (3 m) DC switch cable allows flexible fan placement

What weather and durability features protect the fan outdoors?

The fan kit is built to resist rain, dust and physical impacts encountered in outdoor and agricultural settings. IP65 waterproofing and a sturdy ABS shell reduce the risk of short-circuiting and extend service life even when mounted on exposed walls or roofs.

• IP65 rating shields electronics from water spray and dust
• Double metal protective mesh guards fan blades from animals and debris
• Dust-filter cotton helps keep intake air and internal components cleaner
• 180° adjustable panel bracket lets you aim the panel for best sunlight exposure

How easy is installation and what mounting options exist?

Installation is straightforward: connect the solar panel to the fan, position the panel in sunlight, and secure the fans where ventilation is needed. The included long DC switch cable gives flexibility to place the solar panel away from the intake or exhaust location.

• Simple two-component setup: panel plus fan assembly
• Multiple mounting methods supported for walls, roofs or windows
• 3 m cable accommodates distant panel placement for optimal sun exposure
• Adjustable bracket lets you change tilt without removing the unit

How much airflow and noise should I expect inside small buildings?

The dual exhaust configuration provides efficient air exchange while keeping acoustic levels low. Fans spin up to approximately 3,000 RPM, designed to reduce heat and moisture without disruptive noise that could stress animals or disturb living spaces.

• Dual fans for increased ventilation compared with a single unit
• Low-noise motor suitable for coops, pet houses and sheltered workspaces
• Removes hot air and odors to improve indoor comfort and air quality
• Performance depends on sunlight intensity and battery charge level

Who is this for: The SUNYIMA 20W solar fan kit suits homeowners, hobby farmers and gardeners who need dependable off-grid ventilation. It’s ideal for chicken coops, small greenhouses, pet houses, sheds and attic or window vents where running mains power is impractical. If you want a weatherproof, low-maintenance fan that charges by sunlight and continues working after dark, this kit provides a compact, out-of-the-box solution.