The Solar Energy unit contains a built in control box, lithium battery, and solar cell all in one. It can be mounted on the wall or in a place that gets some sunlight. It takes about one minute to recharge the battery after each opening or closing.
You will need one Solar Energy Unit for every motor. The size is 24” wide by 8” tall.
The Rain Wind Sensor works wireless with the current control box or the Solar Energy Unit and is adjustable to the amount of rain and wind to close the cover. It needs to be plugged in to 110V.