Dell L12V3A-W-US 12V 3A 36W power adapter 5.5mm 2.1mm plug
Delivers 12 V at 3 A (36 W) to 5.5 mm × 2.1 mm devices like LED strips and CCTV cameras, with a screw-less LED terminal connector and UL/CE/FCC safety certifications
- Adapter typeUSB C Charger
- Cable length5 in (12.7 cm)
- Cable jacketCopper
- Units per package1
- Product type9 V
- Product colorBlack
- Worldwide use with 100-240V 50/60Hz AC input
- 36W 12V 3A output powers many 12V devices
- 5mm 2.1mm DC plug with LED terminal connector for solder-free wiring
- Six safety protections include overload, overvoltage and short-circuit cutoffs
- UL CE FCC certified for safety and quality assurance
Purpose and audience
The Dell L12V3A-W-US is a 36-watt AC-to-DC power adapter delivering 12 volts at up to 3 amps through a 5.5mm by 2.1mm barrel plug. It is intended for installers and hobbyists who need a compact, safety-certified supply for 12-volt equipment such as LED strips, CCTV cameras, routers or small audio devices.
Suitable and unsuitable uses
This unit suits any 12-volt load drawing 3 amps or less, including devices rated at 500mA, 1.5A, 2.2A or 2.5A, and it accepts 100-240V mains at 50 or 60Hz for worldwide use. It is not for loads that exceed 36 watts or 3 amps, nor for hardware requiring a different output voltage, a larger barrel size or a locking connector.
Deciding specification
The critical figure is the 5.5mm outer and 2.1mm inner diameter of the DC plug combined with the female LED terminal connector that allows solderless wire termination. Verify that your device matches this exact plug geometry and 12-volt polarity before purchase.
How it compares
Measured against everything we stock in AC Adapters & Power Bricks, at today’s prices. Recalculated every night.
- Price $23.99
- Typical for this category: the median of 3,875 items is $23.99.
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Specifications
| Product | |
|---|---|
| Brand name | Dell |
| Product line | L12V3A |
| Model name | L12V3A |
| Part number | L12V3A-W-US |
| Product type | 9 V |
| Adapter type | USB C Charger |
| Product color | Black |
| Size & build | |
| Cable length | 5 in (12.7 cm) |
| Cable jacket | Copper |
| Product dimensions | 14.33 in W × 12.83 in H × 9.06 in D |
| In the box | |
| Units per package | 1 |
| In the box | 1 |
Questions about this item
What clearance is needed for the 5.5 mm outer and 2.1 mm inner diameter DC plug on this adapter?
The plug measures 5.5 mm outer and 2.1 mm inner diameter, so the device jack must accept that exact size.
Which step is often missed when wiring the included female LED terminal connector?
Users sometimes forget to match polarity on the screw terminals before tightening, causing the LED indicator to stay dark.
When should the 6 ft AC cord be replaced on this 36 W unit?
Replace the cord if the insulation shows cuts, the plug pins bend, or the adapter trips its overload protection repeatedly.
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