40W Car Step Down Power Transformer Converter

40W Car Step Down Power Transformer Converter

1.100%full power & stable current output
2.100% imported components.
3.Wide input voltage from 12-5V dc.
4.100% waterproof & anti-shock protection, Ultra compact size, light weight.
5.Industry grade DC12v to DC5V step-down converter, efficiency up to 97%.

Product Details

Sino-k Frequency DC12V To 5V 8A 40W Car Step Down Power Transformer Buck Converter

           Our products are widely used in automotive, posts and telecommunications, communications, electricity, coal, aerospace, defense, surveillance systems, railway signals, medical equipment, instruments and meters, LED displays, cable TV and other fields.

Product Description.png

Product Description

Wide operating temperature rage

Shock and vibration resistant

Cool operation, high reliability, long life

LED indicators display power and fault status

Max. efficiency to 92%, Non-Isolated.

Anodized aluminum case provides durability

Waterproof: IP68

Swithing-mode power supply

Approvals:CE mark / RoHS


One year warranty






Input DC voltage


Input DC voltage range


Output DC voltage


Output current


Output power maximum(W)

                                      40 Watt

Working temperature

                                   0°c ~ 80 °c

Working humidity


Storage temperature

    -20°c ~ 85 °c

Ripple and noise type(mVp-p)








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Company Information

 Who we are

SINO-K is a professional high-tech manufacturer that integrates R&D, manufacturing and marketing of energy electronic series products,including DC-DC Power Converters,DC-AC Power Inverters, and Custermized services.The headquarters is located in Shenzhen. Shenzhen production workshop area of 850 square meters, and, in inland city, the production base with 6900 square meters.Our professional technicians and senior engineers with more than 10 years of energy product research and development, production management experience.


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We offer as many shipping options as possible, including DHL, UPS, TNT, Fedex,EMS,etc.


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Contact us





A:Can I get some samples?
B:Yes, sample order is available for quality check and market test. After we receive the sample charge, the samples will be delivered in 7-15days.

A:Can you do the design for us?
B:Yes. We have a professional designing team. Just tell us your ideas and we will help to carry out your ideas. Send us high resolution images, your Logo and text and tell us how you would like to arrange them, We will send you finished files for confirmation.

A:What about the delivery time?
B:It depends on the quantity and the season you place the order. If everything is ready,we will ship at the first time.

A:What’s your Warranty terms?
B:We offter 1 year warranty time.

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