Question 1

Are you a manufacturer or a trading company?

Accepted Answer

We are a direct manufacturer specializing in R&D, design, production, and sales of transformers and voltage stabilizers. We have a complete production line and a rigorous quality control system. Factory visits are welcome at any time.

Question 2

Do you offer OEM/ODM services?

Accepted Answer

Yes. We have a professional engineering team that can customize products according to your drawings, voltage requirements, or special application needs.

Question 3

What is the difference between JBK3 and JBK5 control transformers, and how do I choose?

Accepted Answer

Both JBK3 and JBK5 series are designed for 50/60Hz AC circuits. The JBK5 is an upgraded version with optimized terminal blocks, higher protection rating IP2LX, and better grounding materials. For standard applications, JBK3 is sufficient. For higher protection and safety, choose JBK5.

Question 4

What is the input/output voltage range of your control transformers?

Accepted Answer

The JBK3/JBK5 series are suitable for 50/60Hz AC with input voltage not exceeding 1000V and output voltage up to 220V. Other voltage ratings can be customised.

Question 5

What is the power range of SBW series large power stabilizers?

Accepted Answer

SBW series typically cover 10kVA up to 2000kVA or higher. Other ratings can be customised.

Question 6

Do your products have international certifications?

Accepted Answer

Our products comply with relevant international and domestic standards. The JBK3 and JBK5 series are CE certified. We can also assist with CE, UL, CB, or other certifications according to your target market.

Question 7

Can you customise voltage and frequency for different countries?

Accepted Answer

Yes. We can adjust to any local voltage/frequency, e.g., Japan 100V/50Hz, USA 120V/60Hz, EU 400V/50Hz, etc. Please specify your requirements when ordering.

Question 8

What is your minimum order quantity (MOQ)?

Accepted Answer

MOQ varies by model and specification. For standard products, we accept small orders and even sample orders. For customised items, MOQ is negotiable.

Question 9

What is your lead time?

Accepted Answer

Lead time depends on product type and order quantity, typically 7-30 days after order confirmation. We will confirm the exact schedule upon ordering.

Question 10

What payment methods do you accept?

Accepted Answer

We accept T/T, L/C, Western Union, PayPal, and others. Payment terms are negotiable based on order value and cooperation.

Question 11

How do you guarantee product quality?

Accepted Answer

We have a complete quality control system. Every product undergoes strict inspection during production and before shipment. All processes comply with ISO standards. We can provide photos or videos of production and packaging upon request.

Question 12

What is your warranty period?

Accepted Answer

Our warranty is one year from the date of sale. For quality defects arising from proper use, we provide free repair or spare parts replacement. We also supply free spare parts for regular maintenance based on order quantity.

Question 13

How do you handle aftersales support if problems occur?

Accepted Answer

Our professional technical support team responds within 2 hours. For parts issues, we only need a photo of the faulty part and will send a free replacement. Remote technical guidance is also available.

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