How about your after-sale service?

1.365 day warranty 2.20 days refund without reason 3.If the customer has any questions,we will provide technical support timely.

Wholesale EE EF Series Transformer Use for Mobile Phone Charger Step Down Transformer

Name: Wholesale EE EF Series Transformer Use for Mobile Phone Charger Step Down Transformer
Brand: Changxing ChaoNeng Technology Co., Ltd.
SKU: 2285832695

Zhejiang, ChinaChangxing ChaoNeng Technology Co., Ltd.

US$0.20

99-998 Pieces

US$0.19

999+ Pieces

Sample price:US$0.15/piece.Request sample

Product profile

Customization

Available

Type

Variable Inductor

Structure

Mutual Inductor

Working Frequency

High Frequency

Structure of Winding

Adjustable Inductor

Nature of Operation

Adjustable Inductor

Range of Application

Power Measurement

Packaging Form

Power Coils

Delivery Time

30days

Application

Home Security System

Color

yellow,red ,blue

Material

Copper Wire + Ferrite Core

Transport Package

Make to Order/Carton

Origin

Zhejiang China

Production Capacity

1000000 Piece/Pieces Per Day

Key features

OEM and ODM Services: Welcome OEM and ODM orders with custom packaging and printing services.

Fast Delivery Time: Usually takes only 2-3 days after receiving payment depending on stock.

No MOQ Requirement: Accept small orders with no minimum quantity restriction.

365-Day Warranty: Provide a one-year warranty covering mechanical defects.

20-Day Refund Policy: Offer 20 days refund without reason for customer satisfaction.

Strict Quality Control: Each product undergoes professional testing procedures before packing.

24/7 Technical Support: Provide timely technical support and product status updates online.

Wide Material Selection: Offer all models of materials and recommend options as needed.

Company profile

Changxing ChaoNeng Technology Co., Ltd.

Zhejiang, China

Business Type: Trading CompanyAverage Response Time: ≤24h

AI-Powered supplier vetting

SummaryThe supplier manufactures electronic components, including inductors, magnetic cores, skeletons, transformers, rectifiers, capacitors, and related materials. It reports substantial annual production capacities and holds ISO9001:2015 and ISO14001:2015 certifications. Customization and ODM services are available, but the supplier reported no new products in the past year and no SDK availability. Service-management controls are weakly documented: procedures and records for service assessment, corrective actions, and complaint handling are absent. Overseas service infrastructure is limited, with no overseas warehouse, showroom, agent, branch, or offline trade-show participation. Financial credibility cannot be conclusively assessed because the supplied financial figures are inconsistent and are not presented with clear units or definitions. No customer cases or famous-brand OEM experience were provided.

Supplier typeThe supplier is a manufacturer of electronic components, with stated business activities covering inductors, transformers, rectifiers, capacitors, electronic materials, and plastic products. Its company description also identifies production of inductors, magnetic cores, and skeletons, indicating a component manufacturing profile rather than a service-only or trading-only role.

CertificationsThe supplier holds ISO9001:2015 and ISO14001:2015 certificates according to its supplier-management information. A separate slice lists ISO9001:2015 as its sustainable-development management certification and confirms an environmental impact assessment report, although it also reports no regular fire drills in the past year.

After-Sales capabilityThe supplier offers stated quotation and payment options and reports peak- and off-season lead times within 15 working days, with access to Shanghai and Ningbo ports. However, it has no written procedures or records for service assessment, corrective and preventive actions, or complaint handling, and it has no overseas warehouse, showroom, agent, branch, or offline trade-show experience.

Production capacityThe supplier reports annual capacities of 850 million E-type inductors, 500 million H inductors, 100 million magnetic cores, and 100 million skeletons. Its business scope covers several related electronic-component categories, and it reports lead times within 15 working days in both peak and off-season periods, supporting a positive assessment of manufacturing capacity.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also confirms ODM service availability, providing direct evidence of broad customization support.

Product Q&A

Q:How do you test the product before they are packed?

We have the strict QC procedure, each product will be tested with professional procedures before packing.

Q:Do you have OEM/ODM?

Yes. we have our factory.Please tell us your requirement,we will reply as soon as possible,we offer custom packaging and printing services for your convenience.

Q:If I place an order, how long will it take to deliver?

It usually takes about only 2-3 days after receiving the payment, depends on the quantity ordered and the stock status.

Q:What is your MOQ?

No MOQ.we accept small orders. Because we believe that small orders may become big orders in the future.

Q:What are the advantages of your products?

1.We have all models of material, save you time looking for it.And recommend materials for you if you need. 2.With the same quality products,we can give you best price. Inquiries to after-sale, we will provide good service,such as update product status, technical support etc.(24 hour online) 3.We have many stocks, and the delivery time usually is short