Amazon.com : ecoCalm Solar Fan with Battery, 8 ...

Impressive kit. Comes complete with plenty of electrical wire, and all the connectors. Well, thought out. It is a little more money than others I've seen on here, but we are so happy and amazed with the ease of assembly,performance, fan size and quality. Assembly was done in about an hour, most of it deciding placement. You will likely need a handheld drill and screwdriver. We currently feel it works best without the battery back up hooked up-but it's spring going in to summer and there is plenty of sun. The panels are very sensitive to the sunlight and work even on overcast days. The greenhouse we placed them on is 10x12x12 tall. The fans are mounted to the end wall at about 10 ft. The solar panels wing out at the Frame above the door at the apex of the poly tunnel frame. One fan is on each side of the top of door frame. There is a window on the opposite wall. We added a 30% sunshade (purchased from Amazon also) on our Northside because the afternoon sun was cooking our plants. These fans are an integral part of humidity and temp management. So far they have been powerful enough-as noted by the leaves of the plants gently dancing. They work consistently noted by temp, and they pick up speed more sun. Thinking about some for our house now since we are off grid.

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This is a 12-volt DC fan that can work with a solar panel from 20 watts to 100 watts. This is very good fan in all respects: Airflow, sound intensity, vibration and efficiency. Quite suitable for solar application. Works GREAT with 100W, (~)12V panel but will work with much smaller panels too. When wired - to black and + to blue the airflow is towards the wires, the screen, towards you as pictured. The good quality motor designed for a demanding environment. It can be used it in my greenhouse. Does the job nicely and will fulfill a multitude of diverse applications. This item is recommend buy from most customers! The fan can be installed in an opening such as a gable vent. Kit come with 4 brackets to install the fan. Instructions Included. Full refund if the product is defective.

Size:

12"x 12"x 3"

12"x 12"x 3"

10" x 10" x 3"

14" x 14" x 3"

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Price:

$49.95

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