Best Dual Output Power Supply: 12V and 24V Options for Your Projects
When you need reliable dual-output DC power, this guide highlights five top Amazon options that deliver 12V and 24V outputs with clear protection features. These products are suitable for DIY electronics, CCTV setups, 3D printers, LED projects, and small industrial or automotive applications. The best choice depends on your load, input voltage availability, and the need for stable, low-noise output. Below, you’ll find practical details to compare, plus a quick buying table to help you pick at a glance.
| Product | Output Voltage | Best For |
|---|---|---|
| Arcity 5V/12V/24V Output Switching PSU | 5V, 12V, 24V | Multi-device DIY builds, video/multi-game machines |
| Arcity 5V/12V/24V Output Switching PSU (Second Variant) | 5V, 12V, 24V | CCTV, computers, and console setups |
| ATNSINC Dual Output 24V/12V PSU | 24V, 12V | Industrial and control-system projects |
| MEAN WELL RD-125-1224 | 12V, 24V | Compact dual-output needs |
| BOSYTRO 24V Adjustable PSU | 0–24V (adjustable) | 3D printers, CCTV, lab uses |
Arcity Dual Output Switching PSU With 5V/12V/24V
The Arcity unit provides clean, low-noise DC outputs at 5V/8A, 12V/8A, and 24V/3A from a compact AC input range of 100V-240V. It includes standard protections: OVP, OCP, SCP, OTP, SIP, and OPP. Best for DIY arcade cabinets, multi-console projects, or CCTV setups that require several voltages from one supply. A potential limitation is lower 24V current at the 24V rail when full 5V/12V loads are active, so plan loads accordingly.
Arcity 5V/12V/24V Output Switching PSU (Variant 2)
This version mirrors the first Arcity PSU with separate clean outputs: 5V/8A, 12V/7A, and 24V/5A, plus a switchable AC input (110V/220V). It suits video multis, gaming consoles, CCTV, and DIY PC projects that require reliable, low-noise DC rails. Best for users needing a slightly different current distribution than the first option. A caution: ensure your 12V and 24V loads stay within the listed caps to avoid overheating under heavy simultaneous loads.
ATNSINC Dual Output 24V/12V Power Module
The ATNSINC module provides 24V at 4A and 12V at 1A, designed for industrial or control-system tasks. It supports a wide input range (AC 120V to 260V) and includes indicator lights. It’s best for compact industrial controllers or lab setups needing two fixed rails. Limitation: the 12V rail is modest in current and may require cooling or planning when the 24V rail is heavily loaded.
MEAN WELL RD-125-1224 Dual Output PSU
The RD-125-1224 delivers 12V at up to 3.7A and 24V within its combined 133.2W rating. It is a compact option for projects needing reliable dual rails with robust protection. Best for embedded electronics, hobby CNC, or telecom enclosures that require stable dual rails. Limitation: detailed datasheet is needed to confirm efficiency and fanless operation for silent installations.
BOSYTRO 24V Adjustable DC Power Supply
BOYSYTRO offers a 24V adjustable output from 0 to 24V with up to 600W and a visible LED display. It supports up to 25A max and includes protections suitable for 3D printers, CCTV, and lab equipment. Best for users who need a wide adjustable range and clear readouts. Caution: peak power can exceed actual continuous load, so avoid running near max current on long-term cycles without cooling.
NOYITO AC to DC Dual Output Power Module
NOYITO offers a dual output of 24V at 4A and 12V at 1A with a wide input range. It suits civil and industrial control systems needing two fixed rails and indicator features. Best for compact control panels or small automation projects. Limitation: the 12V rail is modest; plan loads accordingly to avoid overloading when 24V is delivering peak power.
inShareplus 12V Power Supply
This 12V/2A supply is ideal for LED strips, routers, and other 12V devices. It supports 100-240V input and 12V output up to 2A, making it a straightforward option for single-rail needs that may serve as part of a dual-rail setup when paired with another supply. Best for budget-friendly, straightforward 12V requirements. Limitation: it does not provide a dedicated 24V rail, so pairing with a separate 24V supply is necessary for dual-rail projects.
Snlazp 12V/24V Dual-Port USB Power Adapter
Snlazp provides a 12V-24V car/vehicle power adapter with USB-C PD 3.0 and USB-A QC 3.0, totaling up to 60W across two ports. Ideal for automotive, marine, or field-use where both 12V-24V input and USB charging are needed. Best for charging phones or tablets while running a 12V/24V system. Limitation: not a traditional DC power supply for fixed rails; best used for portable charging and auxiliary power in vehicles or vessels.
Buying Guide: Key Considerations for Dual 12V/24V Power Supplies
What will you power? Identify the total current and peak demand for each rail (12V and 24V). Look for models that clearly list individual rail current Ratings and peak capabilities to avoid overloading.
Input compatibility matters. Choose a unit that matches your mains voltage (100–240V AC is common) for global use or pick a device with a wide input range to simplify installations.
Protection features matter. Opt for supplies with OVP, OCP, SCP, OTP, SIP, and OPP to safeguard loads and prevent damage from short circuits, overcurrent, or overheating.
Noise and ripple. Low ripple/noise is important for sensitive electronics. Check datasheets or product features for stated ripple figures and any filtering that reduces electrical noise.
Physical size and cooling. If you have space constraints or run multiple rails, consider the footprint and whether the unit uses convection cooling or a cooling fan. Excess heat can limit continuous current.
Future expandability. If your project might add more devices later, choose a supply with headroom and adjustable outputs or higher current ratings to avoid swapping units later.
Frequently Asked Questions
- What does dual output mean in these power supplies? – It means the unit provides two DC rails, typically 12V and 24V, or a combination including 5V, each with its own current rating.
- Can I mix different brands for a dual-rail project? – Yes, but ensure both supplies are compatible with your devices and provide safe shared grounding. Coordinate protection features and load distribution.
- Do these supplies require cooling fans? – Some models include built-in cooling and LED indicators; others are passively cooled. Check the design and thermal requirements for your load.
- Is a higher wattage rating always better? – Higher wattage provides headroom for peak loads but may be bulkier and costlier. Match wattage to your typical and peak loads.
- What safety standards should I look for? – Look for certifications that indicate RoHS compliance, insulation testing, and protection features described by the manufacturer.
- Can I use a single supply for two different devices with different voltage needs? – If the supply offers fixed 12V and 24V rails with independent regulation, you can power different devices on each rail as long as total current remains within ratings.