iPower Fan Speed Control Adjuster for Duct and Inline Fan 350W<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>iPower Fan Speed Controller will correctly and precisely adjust the speed of your duct and inline fans</li><li>Durable 3-Pole Grounded Plug Construction， No Extra Wires Do Deal With</li><li>One control switch for 3 settings: Variable Speed， OFF， HIGH， MED， LOW</li><li>Built-in grounded control outlet. Suitable for all Duct and inline fans. Warranty: 1 year</li><li>Adjust range 50%~100%. We set the lowest at 50% because the lower volt has the risk of burning the motor</li></ul></div><img src="http://ecx.images-amazon.com/images/I/417jIYPZQAL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CQLtfwL0L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41hV2xuSTKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41bp6WPhYpL.jpg" noproxy>