Growneer Variable Vent Fan Speed Controller Inline Duct Fan Speed AdjusterMore Info
From the product description, check product page for current description, price and availability:
- 3 Gear Speed Regulation: Our fan speed controller can correctly and precisely adjust the speed of centrifugal fans without causing the motor to hum.
- Easy to Use: Plugs directly into an outlet and no messy wires. You also have the option to use with an extension cord. You can easily adjust your fan’s speed with a simple turn of a knob.
- Durable: This unit is ultra-compact. Built-in grounded control outlet. These controllers are more sensitive than any on the market, and are compact and built to last.
- Suitable for Inline Fans: The speed controller makes an affordable and efficient way to create the optimum environment for your growing needs.
- Warning: Don’t use it on brushless type motors. Don’t use it with the fans exceed 3 amps. The work temperature can’t exceed 40℃/104℉, otherwise the controller maybe overheat.
Possible homebrew applications: Use as part of a stir plate build, use to control you kegerator or keezer recirculating fan.
5/7/19 9 AM Central: This has dropped to $8.39. That’s the best historical third party Amazon price I found, notwithstanding Lighting Deals or coupons. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page
More: Recent Amazon Finds
Make sure the components you use are compatible and rated for your intended application. Contact manufacturer with questions about suitability or a specific application. Always read and follow manufacturer directions.