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Product Name |
20W power adapter, 20W AC/DC adapter, 20W power supply |
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Type |
plug in adapter/wall adapter |
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Material |
PC Fireproof Material |
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Input |
100-240VAC ± 10%; 50/60Hz; 0.8A Max; |
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Output voltage |
3-24V |
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Output current |
0.01-3.5A |
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Output |
12V1.6A, 20V1A, 5V4A, 9V2.2A |
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Pins |
CN/US/JP/EU/KR/UK/AU/NZ, locking-type plug or detachable-type plug |
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Protection |
over-voltage, over-current, short circuit protection |
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Advantages |
Ultra-small size, light weight, streamline, fully sealed and easy to carry |
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Certificates |
CCC/UL/cUL/ETL/FCC/CE/GS/CB/KC/KCC/PSE/SAA/C-Tick/RoHS/Reach etc |
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Energy efficiency |
ERP/ CEC/ GEMS/ MEPS standard |
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Package |
(1) Specialized shipping box for sample; |
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Usage |
Intelligent home appliance |
medical beauty machines |
Consumer electronics |
Sports equipment |
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sweeping robots, air purifier, led lamps, cctv camera, mini fan, massage chair,massage pillow,etc. |
facial machines, hair removal device, etc. |
tablet, laptop, switch, set top box, electronic musical instrument, etc. |
massage gun, E-bike, scooter, etc. |
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Here's a detailed guide to 20W wall-mounted power adapters, optimized for compact devices needing reliable power:
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# 20W Wall-Mount Power Adapter: Key Specs
## Basic Specifications:
- Input: 100-240V AC (universal voltage)
- Output Options:
- 5V⎓4A (USB-C PD)
- 9V⎓2.22A (Quick Charge)
- 12V⎓1.67A (common for routers)
- Efficiency: ≥80% (no fan needed)
- Protections: OVP/OCP/SCP
## Physical Design:
- Form Factor: Direct wall plug-in (no cable)
- Plug Styles:
- Fixed blades (US/EU/UK /AU/KR/Japan variants)
- Foldable blades (travel-friendly)
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# Ideal For These Devices:
- Tablets (iPad Air, Samsung Galaxy Tab)
✅ Electronics:
- Wi-Fi 6 routers (e.g., TP-Link AX1800)
- LED desk lamps (high-brightness models)
- Bluetooth speakers (JBL Charge 5 size)
- Security cameras (Arlo, Nest)
❌ Avoid For:
- Laptops (needs ≥45W)
- Mini-PCs (typically need 30W+)
- High-power gadgets (e.g., portable monitors)
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# Connector Types
1. USB-C:
- Supports Power Delivery (PD 3.0)
- Reversible plug
2. USB-A:
- QC 3.0 compatible
- Max 18W output
3. Barrel Plug (Rare):
- 5.5×2.1mm (center-positive)
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# Buying Checklist
1. Match Voltage: Ensure output (e.g., 9V/12V) fits your device.
2. Verify Protocols: Check for PD/QC if charging modern gadgets.
3. Certifications: CB, CE, GS, UKCA, UL, ETL, FCC, cUL, PSE, C-tick, SAA, KC, KCC, BSMI, BIS, CCC, RoHS, Reach marks for safety.
4. Outlet Space: Measure if bulky design blocks other sockets.
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# Advantages
- Portability: Fits in pockets/bags easily.
- No Cable Clutter: Direct plug-in design.
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# Limitations
- Heat Buildup: Small size = less heat dissipation.
- Fixed Cable: Can't replace if damaged (unlike desktop adapters).
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# Safety Notes
Avoid cheap knockoffs (risk of overheating).
Don't use in humid areas (bathrooms/kitchens).
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