About LED light driver

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Isolated Driver

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Isolated Driver: The load side and the input side of an isolated power supply are connected indirectly, so there is no risk of electric shock from touching the load.

Isolated power supplies have a low drive efficiency and a voltage range of 60V-300V.

Isolated power supplies use a transformer to step down the 220V voltage to a lower voltage through the transformer and then rectify it into a DC output for power supply use. It is called an isolated power supply because the main coil of the transformer is subjected to the 220V voltage and the secondary coil is only subjected to the low AC voltage of the output, and there is no direct connection between the main and secondary coils.

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Non-Isolated driver

1.Non-isolated  driver voltage range is slightly worse than isolated, the voltage range between 110V-300V, while the isolated power supply can do 60-300V
2: Non-isolated drive efficiency is higher, according to the actual use of the requirements to choose isolated or non-isolated drive.
3: Non-isolated type is basically the use of DC/DC boost (Boost) or buck (Buck) circuit, the relative circuit is simpler, and therefore the cost is relatively low.

Linear power supply

A linear power supply is a transformer that reduces the voltage amplitude of the alternating current and then rectifies it in a rectifier circuit to obtain a pulsed direct current. To achieve a high precision DC voltage, the voltage must be regulated by a voltage regulator. A Linear power supply is a transformer that reduces the amplitude of the alternating current and then rectifies it in a rectifier circuit to obtain pulsed direct current, which is then filtered to obtain a DC voltage with a small ripple. To achieve a high precision DC voltage, the voltage must be regulated by a voltage regulator.

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About us

Aina-4 Technologies (Shanghai) Co., Ltd. is a private limited company registered in Shanghai, China. It specializes in the R&D, design, manufacture, and marketing of light emitting sources and lighting fixtures. It is an enterprise formed by four (4) pioneer lighting companies, putting their resources together to produce products and services that create sustainability not only for the environment, but also for the economies and societies that the company grows with.

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Headquartered in Shanghai

Research & Development center located in Shanghai

Sales center located in Beijing

Complement by a team of professionals with over ten (10) years of experience in the lighting industry

Our Service

We have our own R & D group. Can design or improve lighting based on customers’ requirements

We have different production lines for different lighting. It can make the delivery time faster than others

Our quality inspection department can help customers to check all the items before shipment

We can offer OEM service. Customers can use their own brand.

Our advantages

1, we are factory, not trading company

2, we have more than 100 employees, including 5 quality controller and 10 engineers. So our senior executives attach importance to quality controlling and R & D always

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Trade Terms

1 Payment term: TT deposit after order confirmed, the balance after goods ready before shipping or L/C, or western union for small amount
2 Lead time: normally for big order is around 10-20 days
3 Sample Policy: Samples are always available for each model. Samples can be ready in 3-7 days once payment received

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The prepare time for item is around 10-15 days. All the items will be test before shipment.

All the goods are sent from China for now.

All the order will be shipped by DHL, TNT, FedEx, or By sea, by air etc.  Estimated Time of arrival is 5-10 days by express, 7-10 days by air or 10-60 days by sea.

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Contact us

     Rm606,Building 9, No 198, Changcui Road Changping  Beijing China.102200


WhatsApp/ Wechat/Phone/Skype
      +86 15989493560 

     Monday-Friday 9am to 6pm

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Q: How to find us?
A: Our email: sales@aina-4.com or WhatsApp/Wechat/Skype +86 15989493560

Q: How can I get the sample to check your quality?
A: After price confirmation, you can require for samples to check. The samples fee you paid will be return to you when there is formal orders step by step.

Q: How can I get your price?
A: We will send you quotation within 24 hours after getting your inquiry. If you need price urgent, you can find us any time by whatsapp or wechat or viber

Q: What is your delivery time
A: For samples, normally will take around 5 days. For Normal order will be around 10-15 days

Q: What about the trade terms?
A: We accept EXW, FOB Shenzhen or Shanghai, DDU or DDP. You can choose the way which is the most convenient or cost effective for you.

Q: Can you add our logo on the products?
A: Yes, we can offer service of adding customers’ logo.

Q: Why Choose us?
A: We have three factories in different places focusing one different type of lights. We can offer more lighting choices for you.
     We have different sales office, can offer you more Awesome services.

Post time: Dec-17-2021