SHNITPWR SNT-1203 12V 3A 36W power adapter 5.5x2.5mm
Delivers 12 V DC at up to 3 A (36 W) from any 100–240 V AC mains with a 5.5 × 2.5 mm barrel plug, FCC/CE/RoHS certified and protected against overload, over-voltage.
- ColorBlack
- Weight250 grams
- Universal 100–240V input lets you power 12V devices anywhere
- Constant 12V 3A output with overload, over-voltage and short-circuit protection
- 5×2.5mm DC plug plus screw-terminal female connector for solder-free wiring
- FCC, CE and RoHS certified for safe, cool and silent operation
- AC cable 120cm and DC cable 97cm give flexible placement
What this adapter is and who it fits
The SHNITPWR SNT-1203 is a 12V 3A 36W AC-to-DC power adapter with a 5.5x2.5mm centre-positive barrel plug. It accepts 100-240V input and ships with a 120cm AC cord, a 97cm DC lead and a screw-terminal female DC connector for custom wiring. The unit carries FCC, CE and RoHS certification and includes overload, over-voltage, thermal and short-circuit protection. It is intended for 12V equipment drawing up to 36W such as LED strips, CCTV cameras, routers or 3D printers.
Who should use it and who should not
Buyers needing a compact, safety-certified 12V supply for constant-voltage loads below 36W will find it suitable. The bundled female connector allows solder-free termination for bare-wire devices. It is not for anyone charging battery-powered gear such as laptops, nor for devices requiring more than 36W or a different output voltage. The adapter is not waterproof and must be kept dry.
What the included accessories change
The supplied 120cm AC mains cable and 97cm DC output cable give flexible placement without extension leads. The screw-terminal female DC connector lets you attach bare wires directly to the adapter, removing the need for soldering when powering LED strips or custom PCB projects. Professional guidance suggests operating below 29W for longest service life.
Highlights
- Universal 100–240V input lets you power 12V devices anywhere
- Constant 12V 3A output with overload, over-voltage and short-circuit protection
- 5×2.5mm DC plug plus screw-terminal female connector for solder-free wiring
- FCC, CE and RoHS certified for safe, cool and silent operation
- AC cable 120cm and DC cable 97cm give flexible placement
Specifications
| Brand | SHNITPWR |
|---|---|
| Model | SNT-1203 |
| Part Number | SNT-1203 |
| Color | Black |
| Weight | 250 grams |
Questions about this item
My device uses a 5.5 mm × 2.5 mm barrel jack with centre-positive wiring — will this adapter fit directly?
Yes. The adapter terminates in a 5.5 mm × 2.5 mm plug wired inside "+" and outside "−", matching that exact jack.
I plan to keep my existing 12 V LED strip that draws about 2 A — can this supply run it without modification?
The unit delivers up to 3 A at 12 V and will provide only the 2 A your strip requires, so it works straight away.
After connecting everything, how can I confirm the adapter is operating within its safe 80 % load guideline?
Measure the DC output with a multimeter; a steady 12 V reading while your load draws 29 W or less shows it is working as intended.
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