Free delivery - On selected items



Great adjustable power supply for those DIY science kits
Please select and check required variation before adding to cart
Name: Adjustable Power Adapter
Color: Mainly black
Input: AC100-240V 50/60Hz
Ouput: DC 3-12V  /  3-24V /  9-24V adjustable
Output current: 5A / 2A / 3A
Power: 60W  48W  72W
Total cable length: 200cm
Efficiency: 95%
Size: 120*50*30mm
DC plug: 5.5MM * 2.1~2.5MM

-Fully tested
-Constructed from high quality material
-Easy installation
-Manufactured with precision to meet OE standards
-High quality components
-Application: Can used for DC motor speed control, light dimmer, DIY kits

Package includes:
1x Adjustable Power Adapter (US/EU)

Brand Name: Lincoiah
Certification: CE
Origin: CN(Origin)
Model Number: LJH-186
Output Interface: 5.5mm*2.5mm
Usage: Switching
Output Type: DC
is_customized: Yes
Connection: Plug In
Power: 60W 48W 72W
Output voltage: DC 3V-12V / 3V-24V / 9V-24V
Output current: 5A / 2A / 3A

Shipping Policy

Order Processing Time

All our orders are processed and shipped out within 2 business days. After the order is shipped out and received by the carrier, we will update you with a Track-and-Trace code with which you can use to track your package and see the remaining shipping time. Please allow several hours for the tracking information to update.

We consider shipping an important aspect of the online ordering process and use reliable carriers over cheaper options.

Depending on the product, shipping method and warehouse location, shipping can take between 5-30 days. If you have not received the product after 30 days please contact us at and we will rectify the problem.


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Some of the products available on this website are processed and shipped by FRED Energy Ltd. 

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Returns and Refunds

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You will also need the receipt or proof of purchase.

To start a return, you can contact us at If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Full details can be found here

You can always contact us for any return questions at

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