The XWST waterproof buck converter steps a 12V or 24V supply down to a stable, regulated 5V. The whole board is potted inside a sealed IP67 aluminium housing, so it keeps a clean 5V rail running in damp, dusty and high-vibration spots where a bare module wouldn't last - vehicles, boats, solar setups and 3D-printer enclosures. Choose the variant that suits your load: 1A (5W), 2A (10W) or 3A (15W).
- 12–24V DC input, regulated 5V output
- Up to 3A / 15W, depending on variant
- Over 93% conversion efficiency
- IP67 sealed, fully potted housing
- Aluminium body doubles as a heatsink
- Over-current, over-heat & short-circuit protection
- Low 2.5mA no-load draw
- Rugged -40°C to +80°C operating range
Specifications
Datasheets
One-page technical datasheet per variant. Grab the one that matches the current rating you're ordering - all three share the same housing, wiring and 5V output; only the current ceiling differs.
Choosing your variant
All three variants share the same housing, 12–24V input and 5V output - only the current ceiling changes. Aim for roughly 30% headroom over your peak draw.
What's in the box
Supplied with pre-attached input and output flying leads, ready to wire in.
Great for
Wiring & getting started
- Identify the leads
Red is input positive, black is input ground (the input pair). Yellow is the 5V output positive, with a black output ground.
- Connect the input
Red and black input leads to your 12–24V supply. Install per the label and mind polarity - the input is not reverse-polarity protected.
- Connect the output
Yellow and black output leads to your 5V device. Input and output share a common ground inside the module.
- Seal the joints
Heatshrink or use sealed crimps so the connections are as weatherproof as the converter, keeping the IP67 rating end-to-end.
Common questions
Can this power a Raspberry Pi 4 or 5?
Yes - choose the 3A variant. A Pi 4 draws up to around 1.2–2A under load, so the 3A (15W) version gives comfortable headroom, especially with a display or USB devices attached.
Will it run from a 12V car battery?
Yes. The input range is 12–24V DC, which suits vehicle, caravan and marine use. Just make sure the supply can deliver enough current for your chosen variant.
Can I use it to charge a battery?
No. This is a regulated 5V power supply, not a battery charger - it has no charge profile or cut-off. Use a proper battery charger for charging duties.
Is the IP67 rating genuine - can I mount it outdoors?
Yes. The board is fully potted, so it's dust-tight and handles temporary submersion. It's fine for outdoor enclosures and under-bonnet mounting, as long as you weatherproof the wire joints themselves.
Is the 5V output adjustable?
No, it's a fixed regulated 5V. Pick the current variant (1A / 2A / 3A) to match your load rather than adjusting the voltage.
What do the wire colours mean?
Red is input positive (12–24V), black is input ground, yellow is the 5V output positive, and the second black lead is the output ground. The input and output grounds are common inside the module.
Good to know: Install per the label - the input is not reverse-polarity protected. Pick the current variant that matches your load; running continuously near the rated maximum shortens lifespan, so leave headroom and derate above 40°C ambient. Body 44 × 25 × 20.5mm, mounting holes 4mm diameter at 51mm spacing. Dispatched from our Te Awamutu stock.