Wall Power Adapter
9V 2A Power Supply 18W AC/DC Adapter
18W 9V 2A wall-mount power adapter for routers, ONT modems, audio devices, IP cameras and small LED runs. Universal 100–240V AC input and a 5.5 × 2.1 mm DC barrel connector. DoE Level VI efficiency, OVP/OCP/SCP/OTP protection and continuous 24/7 operation. UL listed, FCC and CE certified. OEM/ODM available.
Unit Price
$1.65 ~ $1.95
USD
UL / FCC / CE Certified
International safety standards
7-10 Days Lead Time
Fast production & shipping
3-Year Warranty
Full quality guarantee
MOQ 1000 pcs
Low minimum order (1000 pcs)
Why 500+ Global Clients Trust TQ Power
15+
Years in Business
500+
Global Clients
10M+
Units Exported
<0.1%
Defect Rate
Product Details
Product Overview
The 9V 2A power supply is an 18W AC/DC adapter that converts a universal 100–240V input into a regulated 9V DC output. Its wall-mount housing plugs directly into a standard outlet, and the 5.5 × 2.1 mm barrel connector fits most 9V equipment without an extension cable. DoE Level VI efficiency and four independent protections (OVP, OCP, SCP, OTP) keep both the adapter and the load safe during continuous operation. The fanless, vent-free housing runs silent — suitable for offices, studios and home installations..
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| DC Output Voltage | 9V DC ± 5% | DC Output Rated Current | 2A (2000mA) |
| Rated Power | 18W | DC Connector | 5.5×2.1mm (2.5mm optional) |
| Body Size | 74×36×29mm | DC Cable Length | 1.2m / 1.5m (optional) |
| Input Voltage Range | 100–240Vac | Input Frequency | 47–63Hz |
| Input Current | 0.8A (Max) | Efficiency | 88%, Level VI |
| Ripple & Noise | ≤120mV | Dielectric Withstand | 3K Vac 1min |
| Protection | OVP, OCP, SCP, OTP | Operating Temp. | 0°C to +55°C |
| Safety Certifications | UL/CUL FCC CE CB | Energy Standard | DoE Level VI |
Design & Build Quality
The 9V 2A Model employs a high-frequency switching topology with premium 105°C-rated capacitors, achieving 88% energy efficiency (DoE Level VI) and keeping surface temperature below 50°C under continuous full load. This thermal headroom makes the model suitable for enclosed cabinets, equipment racks, and installations where airflow is limited. The fanless design ensures completely silent operation — no mechanical noise in studios, offices, or bedrooms.
Typical Applications
With 18W of continuous output, the 9V 2A adapter covers low-power 9V devices. It also works as a drop-in replacement for a failed 9V 2A AC adapter or DC adapter rated at 2000mA. Networking equipment — routers, ONT modems and small switches that specify 9V DC. Audio devices — effects pedals, compact mixers, radios and small amplifiers. Security devices — compact IP cameras, video doorbells and access readers. LED accent lighting — up to about 1 m of 2835 strip. Sensors and controllers — smart home hubs, sensor nodes and relay boards.
Four independent protection circuits in the 9V 2A Model operate autonomously to safeguard both the unit and connected equipment:
• Over-Voltage Protection (OVP) — Shuts down output if voltage exceeds safe threshold; auto-recovers when fault clears.
• Over-Current Protection (OCP) — Limits output current to prevent damage from overloaded downstream wiring.
• Short-Circuit Protection (SCP) — Instantly cuts output when a short circuit is detected.
• Over-Temperature Protection (OTP) — Thermal shutdown activates if internal temperature exceeds design limits; resumes once cooled.
All protection modes are non-latching — the model automatically restarts after the fault condition is removed. Full UL/CUL, FCC, CE, and CB certifications support compliance for commercial, industrial, and residential installations worldwide.
Every 9V 2A Model carries a 3-year warranty covering manufacturing defects. Technical support assists with compatibility verification, cable length selection, and connector configuration. OEM and ODM services are available for custom branding, cable lengths, and plug styles on bulk orders (MOQ 1000 pcs, 7–10 day lead time).
TQ Power manufactures AC/DC adapters ranging from 5W to 500W, with every unit undergoing 100% burn-in testing, hi-pot verification, and output regulation validation before shipping. ISO 9001 certified quality management and UL/CE/FCC/CB listings support worldwide distribution.
Download Specification
Request the full datasheet for 9V 2A Power Supply 18W AC/DC Adapter (PDF)
Technical Specifications
Output Voltage
9V DC ± 5%
Output Current
2A (2000mA)
Power Rating
18W
Input Voltage
100–240Vac
Certifications
UL/CUL FCC CE CB
Connector Type
5.5×2.1mm (2.5mm optional)
Common Applications
LED Strip Lights
LED lighting systems
CCTV Cameras
Security camera systems
Networking Equipment
Routers & switches
Industrial Control
PLC & sensor panels
Why Choose TQ Power
Certified Quality
UL/CUL/FCC/CE/TUV/ROHS certified. Meets international safety standards for global markets.
Fast Delivery
7-10 days lead time for stock items. 15-25 days for OEM/ODM custom orders.
3-Year Warranty
Full quality guarantee. 100% tested before shipment. Defect rate below 0.3%.
Frequently Asked Questions
What is this power supply used for?
This 18W AC/DC adapter converts standard AC mains electricity to stable 9V DC output at 2A. It's ideal for powering LED strips, CCTV cameras, routers, and other 9V devices. Features universal AC input (100-240V) and UL/CUL/FCC/CE certifications for global use.
What devices can I power with this adapter?
Compatible with LED strip lights, CCTV security cameras, wireless routers, network switches, audio equipment, smart home hubs, LCD monitors, and industrial control systems. The 18W output provides reliable power for most 9V applications.
Is this adapter compatible with 110V and 220V?
Yes, it features universal input voltage (100-240V, 50/60Hz), making it compatible with power grids worldwide. Works seamlessly in North America (110V), Europe (220V), Asia (220V), and other regions without needing a voltage converter.
What certifications does this product have?
UL listed and certified with UL/CUL, FCC, CE, TUV, ROHS, UKCA, RCM, BIS, and CCC. These certifications ensure compliance with international safety and electromagnetic compatibility standards for markets including North America, Europe, Australia, and Asia.
What is the difference between AC adapter and DC adapter?
The terms "AC adapter" and "DC adapter" refer to the same product — a device that converts AC input to 9V DC output. Our adapter accepts standard AC power and delivers stable DC to your devices.
What is the MOQ and lead time?
The minimum order quantity (MOQ) is 1000 pieces. Lead time is 7-10 days for stock items and 15-25 days for OEM/ODM custom orders. We offer factory direct pricing with competitive costs for bulk orders.
Do you offer wholesale pricing?
Yes, we offer wholesale pricing with volume discounts. As a direct manufacturer, we provide competitive factory prices for bulk orders. Contact our sales team for a custom quote based on your quantity requirements.
What safety features are included?
Comprehensive protection: Over-Voltage Protection (OVP), Over-Current Protection (OCP), Short-Circuit Protection (SCP), and Over-Temperature Protection (OTP). These safety features ensure reliable operation and protect your connected devices from damage.
Can this power supply run 24/7?
Yes, designed for continuous 24/7 operation with high-quality components and efficient heat dissipation. The housing provides excellent thermal management, ensuring stable 9V output even during extended use.
Are you a manufacturer?
Yes, TQ Power is a professional power adapter manufacturer since 2011. We operate our own factory with full production control, ensuring consistent quality and competitive pricing. We offer OEM/ODM services including custom labeling, packaging, and specification modifications.
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