USB Fan Speed Controller Rotary Knob with Switch 35.1 x 17.6 mm USB-A and Micro USB Input 5 V for Desk and Handheld Fans
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The USB fan speed controller is a small electronic module that connects between the power source and the fan. It allows you to adjust the airflow speed precisely according to your needs, using a simple rotary knob. The module is designed for fans powered from a USB port with a voltage of 5 V, suitable for standard desk, clip, and handheld mini fans. The board measures only 35.1 x 17.6 mm, making it easy to place next to a computer or charger. The connection can be done by anyone without tools or soldering.
Power can be supplied in two ways. The module has a built-in USB-A connector that plugs directly into the USB port of a computer, laptop, mains charger, or power bank. The second option is the Micro USB input, into which a standard charging cable can be connected. The fan connects to the USB-A socket on the other side of the board. The rotary knob also serves as a switch: turning it clockwise increases the speed, while turning it counterclockwise decreases it until it is completely off. The power status of the output is indicated by an LED directly on the board.
- Type – speed controller for USB fans
- Power Supply – 5 V via USB-A or Micro USB connector
- Output – USB-A socket for connecting a 5 V powered fan
- Control – rotary knob with switch
- Direction of Regulation – clockwise to increase speed, counterclockwise to decrease
- Indication – LED power indicator for output
- Board Dimensions – 35.1 x 17.6 mm
- Power Source – computer, laptop, USB charger, or power bank
- Design – populated printed circuit board without a cover with a metal knob
- Package Contents – 1 USB fan speed controller
You will appreciate the module wherever a small USB fan lacks its own speed setting or where its lowest setting is too strong. It is suitable for a fan on a desk, for cooling electronics, routers, or other devices, and for a fan powered by a power bank while travelling. As it is an open board, protect it from moisture, dust, and contact with metallic objects that could cause a short circuit. When handling, hold the module by the edges of the board or the connector and turn the knob smoothly without force. Before connecting the fan, ensure it is suitable for USB power supply.
The USB fan speed controller is a simple and practical solution for achieving smooth speed control for almost any small fan with a USB connector. Just plug it into the port, connect the fan, and adjust the desired power by turning the knob. The two power input options provide flexibility in choosing the source, and due to its dimensions of 35.1 x 17.6 mm, the module does not obstruct anywhere. The switch integrated into the knob allows you to turn off the fan without unplugging the cable. It is a small accessory that transforms an ordinary USB fan into an adjustable speed device for 5 V USB fans.
Delivery
Delivery to address€1.99
Estimated delivery: 23 November – 4 December
Shipped from China
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Returns and Exchanges
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Returns30 days to return without giving a reason
Withdrawal period30 days from receipt of the goods
Deadline to send the goods backWithin 14 days of withdrawing from the contract
Return shipping costsYou pay the postage for sending the goods back to Spain. With An Post (Standard Post), returning a parcel of up to 2 kg to Spain costs about €30. We charge no other fee.
RefundWithin 14 days of your notice of withdrawal, using the same payment method you used for the purchase. If you return the whole order, we will also refund the delivery cost.
Crediting of the amountUsually 2–10 working days, depending on the payment method
Product conditionYou may unpack the goods and try them as you would in a shop, and you can return them even without the original packaging
Returns addressQX-BOX AEMALL RETURN
Rotonda Rene Descartes, Parcela 101 – Nave 3
28070 Alcala de Henares, Madrid
SpainReturns centre in Spain operated by Qxbox, an e-commerce logistics provider and logistics partner of the sellers on our platform.
How do I return goods?
- Email us at info@lunzo.ie with your order number and the items you are returning.
- Pack the goods and send them by post to the returns address in Spain.
- Send us the proof of dispatch with the tracking number – this lets us refund you without waiting for the parcel to arrive.
Faulty goodsUp to 6 years to claim for faulty goods
Did the goods arrive damaged, do they not work, is something missing from the parcel or do they not match the description? We will sort it out.
Period for claiming a faultUp to six years from delivery of the goods
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How does it work?
- Email us at info@lunzo.ie with your order number and a description of the problem, and attach photographs or a video.
- We will assess it and suggest a solution. Photographs are usually enough – please do not send the goods back until you have received instructions from us.
- We will settle your claim within 30 days at the latest – with a new item, a price reduction or a refund.
If the goods need to be sent back, we will refund the postage for a valid claim (just provide the receipt).
ExchangesA different size, colour or variant
Write to us within 30 days of receipt at info@lunzo.ie with your order number and the variant you are interested in. We usually reply within 24 hours.
If the variant is available, we will send you instructions for the exchange. You pay the cost of sending the original item back; the new variant will be sent to you at no further charge.
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About the seller
This product is sold and shipped by an external seller. LUNZO guarantees you a safe purchase: online payments go through a secure payment gateway, and you handle your order, returns and complaints with us.
The following information has been provided by the product seller, who is responsible for its accuracy. The seller acts as a trader.
Seller:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
Manufacturer:
Yongkang Yongchang Electric Tools Co., Ltd
Address: West side, 3rd Floor, No 27, Zerong Road, Dahou Village, Tangxian Town, Jinhua City, Zhejiang, China
E-mail: 297288217@qq.com
Telephone: +86 135 6007 1153
EU responsible person:
EU Consulten Srls
Address: Via Varesina 55, 20156 Milano, Italy
E-mail: Eu-consultenSrls@hotmail.com
Telephone: +39 328 583 2654
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