As a versatile and reliable power solution, the HJ-0903 36W multi-voltage AC-DC Power Adapter is engineered to meet the diverse power needs of various electronic devices, backed by our factory’s 15+ years of expertise in manufacturing high-quality electrical components. Designed with global compatibility in mind, it features a wide input voltage range of AC100～240V and supports 50/60Hz input frequency, making it suitable for use in most regions around the world without the need for additional voltage converters. With four adjustable output voltage and current combinations—9V 4A, 12V 3A, 18V 2A, and 24V 1.5A—it offers flexible power options to match the requirements of different devices, eliminating the hassle of carrying multiple adapters.
Boasting an operating efficiency of ≥80%, this adapter ensures energy-saving performance while delivering stable power output, reducing unnecessary energy consumption and operational costs. Its robust design enables it to perform reliably in harsh environmental conditions, with a working temperature range of -20℃～+50℃ and a storage temperature range of -20℃～+80℃, alongside compatibility with 10%～90% RH humidity levels. Whether used in cold outdoor settings or humid indoor environments, it maintains consistent performance to keep your devices running smoothly.
Safety is a top priority in our product design, and the HJ-0903 is equipped with multiple protection functions including overvoltage protection, short circuit protection, overload protection, and temperature protection. These features effectively safeguard both the adapter and connected devices from potential damage caused by voltage fluctuations, circuit faults, excessive load, or overheating. Additionally, the adapter has obtained CE and ROHS certifications, complying with strict European safety and environmental standards, ensuring safe and eco-friendly use for both home and professional applications.
This multi-voltage adapter finds wide application across various product categories. For 3C products, it is ideal for powering small Bluetooth speakers, portable digital players, and external hard disk enclosures, with the 9V 4A or 12V 3A output providing stable power for daily use. In the Smart Home sector, it supports devices such as smart doorbells, small humidifiers, LED smart light strips, and home surveillance cameras, with the 12V 3A or 18V 2A output meeting their power demands. It also caters to small motor-driven equipment like mini DC gear motors, toy car motors, and small water pumps, utilizing the 18V 2A or 24V 1.5A output for reliable operation. Furthermore, it serves as a practical power source for network devices such as small enterprise switches, multi-port routers, and POE switch auxiliary power supplies, compatible with 12V 3A or 24V 1.5A outputs.
We also offer OEM customization services to tailor the adapter to your specific needs, whether it’s adjusting the output interface, modifying the appearance, or adding your brand logo. When using or purchasing, please ensure the output interface matches your device (common sizes include 5.5x2.5mm and 5.5x2.1mm), and use a suitable adapter if necessary. Note that this is an AC-dc power adapter, not a Charger, and should not be used to directly charge devices with built-in batteries (such as laptops or mobile phones) to avoid damage. Additionally, do not exceed the rated 36W output power to prevent triggering overload protection or damaging internal components. With its versatility, safety, and reliability, the HJ-0903 is the perfect power solution for both personal and professional use.
