What is the delivery time?

Standard products take 10-15 working days. New customizations require an additional 5-7 days for samples. Large orders may take 15-30 days.

Can samples be provided?

Yes, samples are available for serious customers. A sample fee is usually required but can be refunded upon bulk order. Sample lead time is 3-5 days.

What is the warranty period?

We provide a 1-year warranty. Quality issues will be repaired or replaced for free.

What are common reasons for transformer failure?

Common causes include overload, short circuits, and harsh environments (high temperature/humidity) leading to insulation aging.

Top Quality Ei 6622 Power Transformer 5V 12V 24V to 220V Step up Down with CE Certification for Security Systems

Name: Top Quality Ei 6622 Power Transformer 5V 12V 24V to 220V Step up Down with CE Certification for Security Systems
Brand: Hangzhou Udwells Technology Co., Ltd.
SKU: 2230886655

Zhejiang, ChinaHangzhou Udwells Technology Co., Ltd.

US$0.50-1.50

500 Pieces

Product profile

Customization

Available

Application

Power, Electronic, Instrument, Lighting, Rectifier, Audio

Phase

Single

Model NO.

Core

Core-type Transformer

Cooling Method

Dry-type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001

Usage

Single-phase Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Operating Temperature

-40ºCTO +125ºC

Storage Temperature

-25ºCTO+85ºC

Customize

Yes

Type

Ei/Toroidal

Installation Method

Vertical/Horizontal/with a Base/with a Cover

Transport Package

Export Standard Carton and Strong Pallet

Specification

EI Series Low Frequency Transformer

Origin

Zhejiang

Production Capacity

200000 PCS/Month

Key features

Wide Power Range: Available from 0.3VA to 2000VA for various applications.

CE Certified: Meets CE certification standards for security systems and electronics.

Customizable Design: Supports custom operating temperatures, storage temps, and installation methods.

High Quality Materials: Uses new high-grade silicon steel sheets and 100% pure copper wire.

100% Factory Testing: Each unit undergoes Hi-Pot, load, and no-load tests before shipment.

Versatile Applications: Suitable for power, electronic, instrument, lighting, and audio systems.

Multiple Core Types: Offers EI and Toroidal core types for different efficiency needs.

Dry-Type Cooling: Dry-type transformer design ensures safe and reliable operation.

Company profile

High Repeat Buyers ChoiceFast DeliveryPrivate MoldQuality Assurance

Hangzhou Udwells Technology Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 3 Years CertifiedNearest Port: Shanghai Port, Ningbo PortAverage Response Time: ≤4.47h

AI-Powered supplier vetting

SummaryHANGZHOU UDWELLS TECHNOLOGY CO. Ltd. was founded in 2008 and reports a self-built plant exceeding 15,000 square meters, more than 10 production lines, Europe as a primary export market, and peak-season order fulfillment within 15 working days. It provides multiple customization options, ODM services, and has launched new products within the past year. The supplier also reports OEM service for well-known brands and quality assurance in its quality-control processes. However, no R&D audit documentation, SDK, approved-supplier list, written service procedures, corrective/preventive-action procedures, or complaint-handling procedures were available. Overseas warehouses, showrooms, agents or branches, and offline trade-show participation were not reported. Financial information is insufficient for a credibility judgment, and sustainability-related fire-drill and environmental-assessment status is unknown.

After-Sales capabilityTechnology engineers are responsible for technical support during production and after-sales service, but the supplier has no written procedures or records for effective service assessment, corrective and preventive actions, or customer complaint handling. It also has no overseas warehouse, showroom, agent, or branch, limiting evidence of structured or localized after-sales support.

R&D capabilityThe supplier reports new products within the past year, ODM capability, customization-related R&D services, and use of PS and CAD. It also reports OEM service for well-known brands. Countervailing evidence includes only one year of total R&D engineer experience, no available SDK, and no R&D design-input, output, review, verification, or validation documents for audit.

Production capacityThe supplier reports a self-built plant exceeding 15,000 square meters, more than 10 production lines, complete testing facilities, and peak-season order fulfillment within 15 working days. These explicit operating-scale and delivery statements support a production-capability advantage, although the number of quality-control staff is listed as unavailable.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, flexible customization, and minor customization. It also provides ODM services, demonstrating broad stated customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and identifies Europe as a primary export market. These statements indicate some brand and export experience, but no customer names, project details, order references, or verifiable case documentation are provided.

Product Q&A

Q:What specifications are needed for a custom transformer?

Please provide input/output voltage and current, rated power (VA/W), frequency (50Hz/60Hz), construction type (EI/Toroidal), installation method, and insulation grade.

Q:How do Toroidal and EI transformers differ?

Toroidal transformers offer higher efficiency and less interference but are costlier. EI transformers are smaller, lighter, and more cost-effective for general use.

Q:Is there a shielding layer in the transformer?

Yes, a copper foil shielding layer can be specified between coils to suppress interference and enhance EMI resistance, essential for audio and measuring instruments.

Q:How is product quality ensured?

We use high-grade silicon steel and pure copper, apply VPI process for moisture resistance, and conduct 100% factory tests including Hi-Pot and load tests.

Q:What is the MOQ and pricing structure?

Price and MOQ depend on specifications. Standard specs may have lower MOQ (e.g., 100pcs), while full customization requires higher MOQ (e.g., 500-1000pcs) due to mold costs.