--- product_id: 94919597 title: "Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply" brand: "cllena" price: "€ 37.92" currency: EUR in_stock: true reviews_count: 12 url: https://www.desertcart.hr/products/94919597-cllena-waterproof-dc-dc-24v-to-12v-10a-120w-step store_origin: HR region: Croatia --- # 95% Efficiency Waterproof Design Multiple Protections Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply **Brand:** cllena **Price:** € 37.92 **Availability:** βœ… In Stock ## Summary > πŸ”Œ Power Up Your Projects with Confidence! ## Quick Answers - **What is this?** Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply by cllena - **How much does it cost?** € 37.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/94919597-cllena-waterproof-dc-dc-24v-to-12v-10a-120w-step) ## 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 - β€’ **High Efficiency:** Experience up to 95% conversion efficiency with cutting-edge synchronization rectification technology. - β€’ **Smart Protection:** Equipped with over-load, over-current, over-temperature, short-circuit, and over-voltage protections for peace of mind. - β€’ **Durable & Reliable:** Built with an aluminum shell and silicone seal, this converter is waterproof, anti-shock, and dust-proof. - β€’ **Powerful Performance:** Transform 24V to 12V with ease, delivering a robust 10A output. - β€’ **Versatile Applications:** Perfect for large trucks, car audio systems, LED lights, and moreβ€”your go-to solution for diverse electronic needs. ## Overview The Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter is a high-performance voltage reducer designed for a variety of applications. With a wide input voltage range and exceptional efficiency, it ensures reliable power delivery while protecting your devices from common electrical issues. ## Description Size:24V to 12V 10A 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 the battery. Keep good air convection. * Never reverse the polarity. * Use the enough big cable to avoid the voltage drop. Application: 24V DC battery 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 10A Output Rated Power: 120W Efficiency: 97% (half load); 95% (full load) Ripple: 200mVp Line Regulation: Β±0.2% Load Regulation: Β±0.2% Voltage Accuracy: Β±1.5% Enclosures: IP68 Case Operating Temperature: -40~85Β°C Weight: 135g 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 10A 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 - About this item - Input voltage range: DC 18-35V; Output voltage: DC 12V(non-adjustable); Output current: 10A; Output power 120W. - 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. - β€ΊSee more product details ## Images ![Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply - Image 1](https://m.media-amazon.com/images/I/71OsocxFxEL.jpg) ![Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply - Image 2](https://m.media-amazon.com/images/I/51o0HCZMO2L.jpg) ![Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply - Image 3](https://m.media-amazon.com/images/I/71MD3mM-HfL.jpg) ![Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply - Image 4](https://m.media-amazon.com/images/I/71R16abQCKL.jpg) ![Cllena Waterproof DC/DC 24V to 12V 10A 120W Step Down Converter Voltage Reducer Regulator Buck Transformer Power Supply - Image 5](https://m.media-amazon.com/images/I/71tlIiy+7LL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐ Label is upside down -> installed it wrong *by M***D on Reviewed in the United States on December 13, 2019* The label (see photo) implies that the yellow cable is for 24V input and red is 12V output... however, that is clearly incorrect based on the product photos (which my husband didn't see in time). The documentation that came with it does not specify cable input/output either. During install he connected it based on the label and shorted out the output side. Looks like the label was applied upside down - doublecheck before connecting! We've ordered a replacement and if it works I'll upgrade our rating. ### ⭐⭐⭐⭐⭐ Very cool product, with sparks and all! (36/48/v 60amp step down converter) *by G***R on Reviewed in the United States 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. ### ⭐⭐⭐⭐ Works good but a few things you need to know........ *by S***L on Reviewed in the United States on August 24, 2020* I installed this in my 48V golf cart to run the stereo and rock lights. I also installed a 20 amp switch to the ground side so I could turn the regulator on and off. Well the switch took about 5 cycles before it arc welded the contacts. Tried another switch and same thing. So I up graded to a 35 amp switch and it seems fine now. This thing draws a lot of power when first powered up. But battery draw seems low afterwards, I didn't check current draw to verify. I also have an issue with using the bluetooth on the stereo due to interference from the regulator. They are mounted within a foot of each other so that may be causing the issue. --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/94919597-cllena-waterproof-dc-dc-24v-to-12v-10a-120w-step](https://www.desertcart.hr/products/94919597-cllena-waterproof-dc-dc-24v-to-12v-10a-120w-step) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-19*