---
product_id: 79829552
title: "Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator"
brand: "cllena"
price: "287 zł"
currency: PLN
in_stock: true
reviews_count: 8
url: https://www.desertcart.pl/products/79829552-cllena-dc-24v-to-12v-40a-480w-buck-transformer-waterproof
store_origin: PL
region: Poland
---

# 40A high current output IP68 waterproof & dustproof 95%+ high conversion efficiency Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator

**Brand:** cllena
**Price:** 287 zł
**Availability:** ✅ In Stock

## Summary

> ⚡ Power your gear like a pro — waterproof, efficient, unstoppable!

## Quick Answers

- **What is this?** Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator by cllena
- **How much does it cost?** 287 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/79829552-cllena-dc-24v-to-12v-40a-480w-buck-transformer-waterproof)

## Best For

- cllena enthusiasts

## Why This Product

- Trusted cllena brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart Safety Shield:** Comprehensive protections against overload, over-current, over-temperature, short-circuit, and over-voltage keep your devices safe and sound.
- • **Efficiency that Saves:** Up to 95% conversion efficiency means less energy wasted and more reliable power delivery.
- • **Powerhouse Performance:** Delivers a robust 480W output with a stable 40A current for demanding professional setups.
- • **Built to Brave the Elements:** IP68-rated aluminum shell ensures ultimate waterproof, anti-shock, and dustproof durability for any environment.
- • **Versatile Pro-Grade Compatibility:** Perfect for large trucks, car audio, LED displays, monitoring systems, and all your high-demand 12V DC applications.

## Overview

The Cllena DC 24V to 12V 40A 480W Buck Transformer is a high-efficiency, IP68-rated step-down voltage converter designed for professional-grade applications. With a robust 40A output current, 95%+ conversion efficiency, and comprehensive multi-layer protection, it ensures stable, reliable power delivery in harsh environments. Ideal for automotive, industrial, and DIY projects requiring dependable 12V DC power from 24V sources.

## Description

Wiring: OUTPUT+ to LOAD+, OUTPUT- to LOAD-; INPUT+ to BAT+, INPUT- to BAT-  Note:  * Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine. * Never charge. Keep good air convection.  * Never reverse the polarity.  * Use the enough big cable to avoid the voltage drop.  Application:  24V DC as input power to 12V DC appliances as output load.   Specifications:  Input Rated Voltage: 24V DC Input Voltage Range: 18-35V DC Output voltage: DC12V 40A Output Rated Power: 480W Efficiency: 97% (half load); 95% (full load)  Ripple: 200mVp  Line Regulation: ±0.2%  Load Regulation: ±0.2%  Voltage Accuracy: ±1.5%  Enclosures: IP68  Case Operating Temperature: -40~85°C  Weight: 550g Features:  1. 100% full power and stable current output, non-isolated module.  2. Industry grade DC24V to DC 12V step-down converter, efficiency up to 95%. 3. Die-cast aluminum shell, epoxy potting, cooling by free air convection; Waterproof level IP68 and anti-shock protection.  4. Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circuit, auto-recovery when device is back to normal operating.  5. Certificates: CE/RoHS, 1 year warranty, lifetime up to 100,000 hours.  Package included:  1 x DC 24-12V 40A Voltage Converter Questions: How to choose the correct current for loads?  For example, if the max current of your load device is 10A, then choose 10A/0.8=12.5A at least for resistive loads according to international standard.  If the load device is motor or compressor, then you may choose 10A/0.5=20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.

## Features

- Input voltage range: DC 18-35V; Output voltage: DC 12V(non-adjustable); Output current: 40A; Output power 480W.
- High conversion efficiency: Synchronization rectification technology-multiple intelligent protection function with high conversion efficiency and stability. The conversion efficiency may reach 95%.
- Protections: Over-load, Over-current, Over-temperature, Short-circuit, Over-voltage.
- Aluminum shell and silicone sealed design: Waterproof, Anti-shock, Anti-humidity and Dust-proof, more durable.
- Wide application: Large trucks, taxi radio, emu, car audio, LCD TV, advertising screen, LED strip lights, monitoring system, motor, electronic systems and DIY etc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Cllena |
| Brand | Cllena |
| Item Weight | 1.1 pounds |
| Product Dimensions | 5 x 2 x 4 inches |
| Item model number | DC2412-40 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | DC2412-40 |

## Product Details

- **Brand:** Cllena
- **Color:** Grey
- **Input Voltage:** 24 Volts
- **Item dimensions L x W x H:** 5 x 2 x 4 inches
- **Output Voltage:** 12 Volts

## Images

![Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator - Image 1](https://m.media-amazon.com/images/I/71ylKsmo6GL.jpg)
![Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator - Image 2](https://m.media-amazon.com/images/I/71GXGP-GbjL.jpg)
![Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator - Image 3](https://m.media-amazon.com/images/I/81RR8KVOg9L.jpg)
![Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator - Image 4](https://m.media-amazon.com/images/I/71WPh61BlzL.jpg)
![Cllena DC 24V to 12V 40A 480W Buck Transformer Waterproof Step-Down Voltage Converter Regulator - Image 5](https://m.media-amazon.com/images/I/71c4mpy-+ZL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: What gauge wire is on the converter?**
A: the 24V to 12V 40A conversion has a VERY undersized gauge wire, 12ga.  all wiring charts show 8ga minimum for 40A.  12ga is for 25A.  The product has very thorough specs, but missing the important one, wire gauge.  I have suspect the 40A is a peak rating and continuous rating might be in the 20 to 25A range.  I bought this to convert the 24V battery bank to 12V common voltage.  I will need to identiy all the loads that will be put on it to determine if a 20-25A converter is adequate.

My battery BMS is rated for 250A yet they put 2ga wires on it rated for 120A.  How can these companies use sub-standard wiring and claim to past various certifications?

**Q: can input voltage a bit off from its range written here? I want to connect a battery 15~16.8V to obtain 12V output with high amp**
A: you need to use a different inverter 1 from 12 volt to 12volt than your input from15 to 16.8 will come out as a stable 12volt

**Q: Can I connect this ti a 48v 12amp Lithium battery and step down to 12v?**
A: It should work and provide 48A-H at 12V when supplied by a 12A-H 48V battery. You do not want to load the 12V beyond its 30A max output or the corresponding max output amps of the battery.

**Q: Can you connect cllena dc 24v step down to 12v 120a 1440w dc/dc voltage converter to a 4000watt inverter?**
A: I’d expect so. Not too sure on what you’d loose in efficiency.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Very cool product, with sparks and all! (36/48/v 60amp step down converter)
*by G***R on March 30, 2020*

This is one of the most useful upgrades I've made to my boat. I boat-in remote camp for a week at a time. With long days on the water and not recharging every night, I sometimes end up with a dead starting battery due to livewells, stereo/amp, and other things running. This unit allowed me to rewire nearly all 12v accessories to my 36v trolling motor battery bank so that my starting battery always has power. And it pulls power from across all three batteries for even wear vs connecting accessories directly to individual batteries in the bank.One note: I read some reviews that state the unit was shorted upon arrival due to a significant spark created when attempting to connect the unit. I had the same experience. After emailing Cllena directly (thinking the unit was shorted), I was advised this is common and got some great help from them. I ended up putting a 50 amp switchable breaker in line between from the 36v bank and power input on the converter. Since the switch was off, I had no spark when connecting. I switched it on, and voila! It worked perfectly. So, don't assume a big spark is a sign of a short - it's just a result of 36v vs what some might be used to in 12v systems.

### ⭐⭐⭐⭐⭐ Is 480W enough?
*by J***L on December 30, 2019*

Should you install a 12V solar system or a 24V solar system? If "bigger is better" why not 48V?So we wanted to install several 12V power points since we had a lot of luck with them previously. This device was the easiest way of enabling our 24V solar system to provide 12V. We also have a 12V water pump (although, I've recently discovered the same pump is available in a 24V version <sigh>) Connecting this converter to the "load" on our solar controller made it a simple matter to power the powerpoints and the water pump. The pump maxes out at 10Amps so 120W from this 480W converter should be no problem.OTOH, we have a 240V house (Aussie rules) but the 120V appliances are so much cheaper. We thought about connecting at 3000W inverter to this converter. Oops. I'm sure you see the problem.''The converter works great. The problem is figuring out what you need it for, :-)

### ⭐⭐⭐⭐⭐ Well made
*by G***Y on July 16, 2025*

Worked as expected

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-01*