OKKÖBI Solar Fan Kit for Chicken Coop & Greenhouse — 25W Solar Panel, Dual 4.7" Fans, Battery Backup, IPX4

This compact system combines two 4.7-inch fans, a 25W photovoltaic panel, and a control box with three operating modes so you can tailor airflow to changing sunlight and activity. Built from ABS and metal with an IPX4 splash-resistant rating, the kit is intended to move stale air, reduce heat buildup and help control humidity and odors where passive ventilation falls short. The battery stores solar energy to keep fans running during low-light periods, increasing consistency compared with panel-only systems.

How does the dual-fan design adapt to different ventilation needs?

The two fans operate independently and can be mounted to function either as air intakes or exhausts depending on installation orientation. This flexibility lets you set up push-pull airflow or concentrate on pulling hot, humid air out of a space for faster exchange. Each fan runs up to about 2500 RPM when powered, providing steady air movement appropriate for small enclosures.

• Two 4.7-inch fans for parallel or opposing airflow setups
• Install as intake, exhaust, or a combination to balance air exchange
• Fans rated to about 2500 RPM for consistent ventilation performance
• Independent fan operation for targeted airflow control

What power and runtime can I expect from the 25W solar panel and battery?

The 25W solar panel harvests sunlight to power the fans and charge the internal battery so ventilation can continue when direct sun is reduced. The battery provides stored energy to run the system during cloudy periods, early morning, or into the evening; runtime varies with sun exposure, chosen mode, and fan usage. This setup helps smooth out intermittent solar input compared with systems that run only while the panel is producing power.

• 25W panel for steady daytime power generation
• Built-in rechargeable battery for operation during low light
• Runtime depends on sunlight, selected mode, and fan speed cycles
• Energy storage reduces abrupt shutdowns when clouds appear

Which control modes are available and when should I use each?

The control box offers three modes—Continuous Mode, Timer Mode, and Motion Sensor Mode—so you can choose constant ventilation, scheduled cycles, or activation only when movement is detected. Continuous Mode is useful for heat-prone periods, Timer Mode conserves battery by running in set intervals, and Motion Sensor Mode supplies airflow only when animals or humans trigger the sensor. Each mode helps balance ventilation needs with battery life and solar availability.

• Continuous Mode for steady daytime ventilation
• Timer Mode for scheduled on/off cycles to save energy
• Motion Sensor Mode to run fans only when activity is present
• Mode selection from the control box to fit site needs

How durable is the system for outdoor enclosures and rough conditions?

The unit combines ABS plastic and metal housings and carries an IPX4 water-resistance rating to resist splashing and light rain. That rating means it’s suitable for exposed outdoor installations when mounted under some shelter or eaves; fully submerged or heavy downpour exposure is not covered. For longest life, mount the solar panel and control box in locations that limit direct impact from severe storms and check seals periodically.

• ABS and metal construction for outdoor durability
• IPX4 rating protects against splashing water and light rain
• Recommended sheltered mounting to avoid heavy exposure
• Periodic inspection of mounts and seals extends service life

Who is this for: the OKKÖBI solar fan kit is designed for backyard poultry keepers, small-scale greenhouse growers, hobby farmers, and anyone who needs reliable low-power ventilation for compact outdoor enclosures. It fits situations where adding wiring is difficult or where solar-backed, battery-assisted airflow will reduce heat, humidity, and odors without constant mains power.