• Telephone0086-0577-62698923
  • E-mailsales@huimultd.com
  • AddressNo.266 Liujiang Road, Wenzhou, Zhejiang, China

location : Home > Help > Q and A >

Question and Answer Banner

Before Order

- How do I use your website?
You can visit Help to learn how to use our website efficiently.

- What products do you supply?
We are a global manufacturer and supplier in providing industrial control products, such as Solid State Relays, Solid State Modules, Voltage Regulators, Rectifier, Motor Controller, Phase Shifter, I/O module and etc. For more details, please visit Product Page .

- What applications are your products for?
Our products are widely used in various fields of production and life, such as home appliances, office equipment, machinery, automation systems, communication, smart homes and etc. For more details, please visit Applications .

- How can I get product information?
You can visit the corresponding Product page on this site or visit our information center for more details. Or contact with us for more support.

- Is there a manual for your product?
Usually, we will attach a manual to each product. If not, you can visit the corresponding Product page on this site or visit our information center for more details.

- Your product model is very complicated. I don't know what model to buy. What should I do?
Please visit Product List to know the full range of solid state relay series, module series and heat sink series. Then you can visit our service center and describe your requirements in as much detail as possible, such as your application, parameters requirement, weight or size requirement, and others. Our sales/service team will respond within 24 hours after receiving your message, please be patient.

- I don't have a company. I just want to buy your product for personal use and design. How do I buy it from you?
Usually we only trade with companies. If you want to buy from us, you need to know about bank transfer and other related operations, and you need to bear all the fees incurred by international remittances. Besides, we do not provide free samples for personal customers. For more details, please visit our Business Policy .

- Can you design solid state relay products that meet our special requirements?
We accept OEM and ODM orders (or customized orders). But we will first calculate the corresponding cost and get a minimum order quantity (MOQ). If your order is greater than MOQ, we will accept it. For more details, please visit our Business Policy .

- What should I pay attention to when choosing the rated current of the solid state relay?
You need to consider your load type and select the rated output current of the solid state relay according to the corresponding derating factor. For more details, please visit How to Select the Solid-State Relays .

Payment and Delivery

- Can I pay by credit card or PAYPAL?
Sorry, we do not accept them. Currently, we only accept SWIFT and Western Union for international orders. For more details, please visit Payment Policy .

- If I want a returns or refund, what do I need to do?
Please refer to the Refund Policy .

-When is the lead time of the goods?
For sample orders, the goods will normally be delivered within 1 week (7days) after the payment is received. For formal orders, the goods will normally be delivered within 1 month (30days) after the payment is received. For more details, please visit Business Policy .

Use and Application

- What do I need to pay attention to during use and testing?
Please place our products in the proper working environment according to the instructions in the manual attached to the product, and wire them according to the wiring diagram, and then follow the requirements of our Safety Manual for reasonable operation. If any abnormalities are found, please turn off the power immediately, and stop any operation. For more details, please visit Attentions when Using or Installing Solid-State Relays and Attentions when Testing Solid-State Relays .

- When do I need to equip the solid state relay with a heat sink?
You need to choose the right water-cooled radiator or air-cooled radiator by considering the actual load current of the solid state relay and the external environment. For more details, please visit How to select the heat sink for SSR and SSM .

After Sales

- How do you provide 24/7 support?
We have a complete sales team and service team, so we can provide you with comprehensive pre-sales consultation and after-sales service. When you encounter any problems during the pre-sales and after-sales process, you can contact our sales manager/product manager by email, phone, or instant messaging app. They will report the problem back to our technical team, and finally provide you with a solution.

- I want feedback, what should I offer?
Please send relevant photos and videos via email or instant messaging app and describe the problem in detail (such as what is the cause of the problem, what is its trigger condition, and what is the result of it, and etc.).

- I don't have a company, and I want to buy your products for personal use. Can you provide services?
Sorry, we only provide services for businesses. For more details, please visit Business Policy .

- I bought products with your brand through other channels. Can you provide service?
Sorry, we can’t. For more details, please visit General Terms and Conditions of Service .