12v3a Wall Mount AC DC Power Adapters

Shenzhen Boerze Power Technology Co., Ltd. is one of the leading manufacturers and suppliers of 12v3a wall mount ac dc power adapters in China. With abundant experience, we are committed to providin high quality customized products made in China with low price. Please feel free to buy cheap 12v3a wall mount ac dc power adapters from our factory. Welcome to contact us for free sample.

1. The power supply boasts ample power, excellent anti-interference capabilities, and minimal DC ripple, ensuring reliable performance.

2. Thanks to its low operating temperature and long service life, the power supply can be used with complete peace of mind.

3. The wide input voltage range, spanning from 100V to 240V, makes it a versatile choice that meets global usage standards.

4. With its outstanding insulation performance and the fact that the high frequency transformer is vacuum impregnated, this power supply is built to last.

5. With a full-load high-temperature aging process lasting 4-8 hours and a 100% aging test, this product boasts a low defect rate and reliable performance.

 

 

6. Enjoy peace of mind knowing that this product comes equipped with top-of-the-line over-current, over-voltage, short-circuit, over-temperature, and overload protection functions.

7. You can rest easy knowing that this product is also designed with moisture-proof and dust-proof functions, ensuring it can withstand various environments.

 

a.Our AC input plug comes with a variety of customization options to meet your specific needs. You can choose from different options such as US, UK, EU, AU, CN, SANS, India and Korea. This ensures that you can use your device anywhere in the world without the need for additional adapters.

b.We also offer a wide range of DC output connectors that can be customized according to your requirements. You can choose from options such as 5.5*2.5mm, 5.5*2.1mm, 2.0*0.6mm, 2.5*0.7mm, 3.0*1.1mm, 3.5*1.35mm, 4.0*1.7mm, 4.5*2.7mm, 4.8*1.7mm, 6.3*3.0mm, 7.4*5.0mm, 7.9*5.5mm, Cigarette butt DC head, USB, and TYPE-C. This ensures that you can use your device with any type of input.

c.The line length can also be customized according to your needs. You can choose from options such as 1m, 1.2m, 1.5m, 1.8m, 2.0m, 2.5m, 2.8m, 3m, 3.5m, and more. This allows you to use your device without worrying about the length of the cable.

d.At our company, we are committed to providing high-quality products that meet the needs of our customers. We pride ourselves on our customer service and are always ready to help you with any questions or concerns you may have. So choose our products with confidence, and let us help you get the most out of your devices.

Our factory boasts a comprehensive production chain and state-of-the-art electronic equipment, along with a highly skilled workforce of 50 employees. We have the capacity to fulfill daily orders ranging from 10000 to 20000, and monthly orders of 300000 to 500000 units.

We take great pride in our global certification, making our power supplies exportable to European and American countries, as well as catering to the needs of domestic, African, and Middle Eastern countries. Our commitment to quality ensures that we offer certified and non-certified products, always meeting the highest industry standards.

We strive to maintain a positive attitude towards our business and our customers, constantly seeking opportunities for growth and improvement. Our team is always looking for new and innovative ways to enhance our products and services, making us a reliable and trusted partner for all your power supply needs.

 

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Automated production lines + high-precision production equipment + testing instruments

SMT placement machines, fully automatic wave soldering machines, automatic transformer winding machines, automatic screw-driving machines, laser marking machines, oscilloscopes, power analyzers, electronic loads, high-voltage withstand testers, infrared thermal imagers, automatic comprehensive testing systems, and burn-in test cabinets..

 

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Strict production standards + multiple rounds of quality control testing + full-load burn-in testing

Each adapter is manufactured in compliance with the ISO9001 quality management system and undergoes rigorous testing-including withstand voltage, short-circuit protection, over-voltage, over-current, and temperature rise tests-to screen out early-stage defects. Finished products undergo comprehensive FQC (Final Quality Control) inspections and a final four-hour full-load burn-in test.

 

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Price Advantage + Global Certifications + Customized Services

We are a direct manufacturer offering competitive prices, stable supply, and guaranteed quality. We can provide certifications required for markets worldwide and also supply reliable, non-certified products for the Middle East and Africa. Backed by an excellent technical team, we offer comprehensive OEM/ODM customization services.

Q: Does this 12V 3A wall-mount AC/DC power adapter consume power while plugged in but idle?
A: There is negligible power consumption. This adapter complies with low standby power standards; it draws very little power when not under load, so the energy consumption during prolonged periods of being plugged in is minimal.

Q: Can this 12V 3A wall-mount AC/DC power adapter be installed horizontally or upside down?
A: Yes, the internal components are securely fixed. However, you must ensure proper ventilation; do not enclose or wrap the adapter, as this could hinder heat dissipation and cause it to overheat.

Q: Can the power cord be extended? What is the maximum length supported?
Customized power cord extensions are available. The standard cord length is 1.2 meters; if an extension is required, we recommend a total length of no more than 2 meters. Excessive cord length causes voltage drop, which can result in insufficient voltage for the device.

Q: Can a single adapter power multiple connected devices?
A: Yes. However, the voltage of all devices must match the adapter's voltage, and the total current draw of the devices must not exceed 3A. It is recommended to use one adapter per device.

Q: Will the adapter burn out immediately if the device's startup current exceeds 3A?
A: No. The adapter features built-in overcurrent and short-circuit protection; if the peak current exceeds 3A momentarily, the protection mechanism will trigger and automatically cut off the output. In most cases, operation resumes automatically once the load returns to normal levels. However, sustained output exceeding 3A can damage the power supply.

Q: Will performance be affected when used in high-altitude areas?
A: At high altitudes, the air is thinner and heat dissipation efficiency decreases. It is recommended to operate at a derated current-avoiding a full 3A load-to lower the operating temperature.

Q: What is the ripple value of your adapters? What impact does high ripple have on the device?
A: The ripple is <120mV. Lower ripple ensures cleaner power delivery; excessive ripple can cause screen flickering, interference with camera images, or even system crashes.

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