The coldSky fan has a 20000 mAh battery and a stated runtime of 40 to 50 hours on a single charge at its lowest speed. Alongside eight speeds, it offers oscillation, LED lighting and the ability to charge other devices. It can be used on a desk at home, while camping or during a power outage.
The coldSky fan has a 20000 mAh battery and a stated runtime of 40 to 50 hours on a single charge at its lowest speed. Alongside eight speeds, it offers oscillation, LED lighting and the ability to charge other devices. It can be used on a desk at home, while camping or during a power outage.
Battery and operation
The built-in battery lets the fan run without a mains connection. The stated runtime of 40 to 50 hours applies at the lowest speed, so it should not automatically be expected at higher settings. The fan can also act as a power bank to charge other devices.
Speeds and airflow modes
There are eight speeds and three wind modes: natural, sleep and strong. The speed setting controls airflow intensity, while the modes offer options for relaxing, sleeping or stronger airflow. The fan uses a dual-motor, dual-blade design.
The fan creates airflow that can make hot conditions more comfortable, but it does not lower the room temperature like an air conditioner.
Oscillation and controls
Horizontal oscillation can be set to 45° or 90°, while vertical oscillation reaches up to 270°. This lets you direct the airflow towards your position or distribute it across a wider area. The fan can be operated manually or with a remote control.
LED lighting
The device has 48 LEDs divided among four lights. It offers cool, warm and mixed colour modes, as well as adjustable brightness. It can serve as a desk lamp or an auxiliary light while camping or during a power outage.
Where to use it
The coldSky is primarily a desktop fan suited to homes, offices and smaller spaces. Its stated optimal area of use is 10 to 15 m². The battery and lighting are also useful while camping or under a small outdoor shelter. Protect the fan from water when using it outdoors.