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$9.31 NZD
XWST DC-DC Buck Converter — 12V/24V to 5V (1A / 2A / 3A) IP67 Waterproof
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Urban $40
Rural $60
Steps down 12V or 24V DC to a stable, regulated 5V output. IP67 waterproof sealed inside a rugged aluminium housing — built for permanent installation in automotive, marine, 3D printer, and solar applications. Available in 1A, 2A, and 3A output variants.
Specifications
| Input Voltage | 12V – 24V DC |
| Output Voltage | 5V DC (regulated) |
| Output Current | 1A / 2A / 3A — select variant |
| Conversion Efficiency | >93% |
| Ripple (full load) | 40mV |
| No-Load Current | 3.5mA |
| Waterproof Rating | IP67 |
| Housing Material | Aluminium alloy |
| Body Dimensions | 44 × 25 × 22mm |
| Mounting Hole | 4mm diameter, 51mm spacing |
| Operating Temperature | −40°C to +80°C |
| Protection | Over-temperature, short circuit |
| Weight | 45g |
Variant Guide
| 1A (5W) | Arduino, ESP32, small sensors, webcam, single LED strip controller |
| 2A (10W) | Raspberry Pi 3/Zero, BTT HDMI display, Klipper host, USB charging |
| 3A (15W) | Raspberry Pi 4/5, Pi + display + webcam combined, multiple USB devices |
Wiring
| Red (Input) | 12V – 24V positive |
| Black (Input) | Ground / negative |
| Red (Output) | 5V positive out |
| Black (Output) | Ground / negative out |
Input and output wire pairs are pre-attached — connect input wires to your 12V/24V supply and output wires to your device. The input and output share a common ground; do not reverse polarity on the input side.
What's Included
| 1 × | XWST waterproof buck converter (selected current variant) |
| Pre-attached | Input wires (red/black) + output wires (red/black) |
Common Uses
3D printing — power Raspberry Pi Klipper host from 12V/24V PSU
Automotive — USB charging & device powering from 12V supply
Camper van, caravan & boat 12V systems requiring 5V accessories
Solar battery systems — clean 5V rail from 12V or 24V battery bank
Powering Arduino, ESP32 & microcontrollers from existing 12V supply
IoT sensor nodes & embedded systems requiring permanent 5V
Common Questions
Can this power a Raspberry Pi 4?
Yes — select the 3A variant. The Pi 4 draws up to 1.2–2A under load; the 3A variant provides comfortable headroom, especially if you have a display or USB devices attached.
Will it work from a 12V car battery?
Yes. The input range is 12–24V DC, making it ideal for vehicle, caravan, and marine use. Engine start voltage dips are handled by the wide input range.
Is the IP67 rating genuine — can I mount it outdoors?
Yes. IP67 means it's fully dust-tight and can withstand temporary submersion in water. It's suitable for outdoor enclosures and under-bonnet mounting provided the wire connections themselves are weatherproofed.
Please note: Select the correct current variant for your load. Running a device continuously near the rated maximum will reduce lifespan. Weight 45g. Mounting hole diameter 4mm, spacing 51mm.
