--- product_id: 349042447 title: "DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light" brand: "cllena" price: "MX$4328" currency: MXN in_stock: true reviews_count: 2 category: "Cllena" url: https://www.desertcart.mx/products/349042447-dc-8v-40v-to-13-8v-20a-automatic-buck-boost store_origin: MX region: Mexico --- # 8V-40V input range Waterproof & dustproof design 20A output current DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light **Brand:** cllena **Price:** MX$4328 **Availability:** ✅ In Stock ## Summary > ⚡ Power up smart, stay unstoppable! ## Quick Answers - **What is this?** DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light by cllena - **How much does it cost?** MX$4328 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/products/349042447-dc-8v-40v-to-13-8v-20a-automatic-buck-boost) ## 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 - • **Versatile Powerhouse:** Perfect for golf carts, club cars, LED lighting, car audio, and more—upgrade your setup effortlessly. - • **Built to Brave the Elements:** Aluminum shell + silicone seal = waterproof, shockproof, and dustproof durability. - • **Efficiency That Saves Energy:** Up to 95% conversion efficiency means less power wasted, more performance gained. - • **Power Your Ride with Precision:** Stable 13.8V output ensures your golf cart and electronics run flawlessly. - • **Smart Protection for Peace of Mind:** Overload, overcurrent, overtemperature, short-circuit, and overvoltage safeguards keep your gear safe. ## Overview The Cllena DC 8V-40V to 13.8V 20A Buck Boost Converter delivers a reliable 13.8V output with up to 20A current and 276W power. Featuring advanced synchronization rectification technology, it achieves up to 95% efficiency while protecting against overloads, short circuits, and more. Its rugged aluminum and silicone-sealed waterproof design ensures durability in harsh environments, making it ideal for golf carts, club cars, LED lighting, and various automotive and electronic applications. ## 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 use for charge. Keep good air convection. * Never reverse the polarity. * Use the enough big cable to avoid the voltage drop. Specifications: Input Voltage Range: 8V-40V DC Output Voltage: DC13.8V 20A Output Rated Power: 276W 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 DC 8V-40V to DC 13.8V step down/up 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 8V/40V to13.8V 20A 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. Review: Works as it should - Using this to guarantee a steady 13.8v output from a 12v battery box for some finnicky equipment. Works as it should. Have used two 10A models as well for about a year without any problems. Seems to be a quality device Review: very good product for a voltage regulator. - It performed as stated. DC voltage in and a constant 13.8 volts out. nice product for my garden tractor voltage regulator. ## Features - Input voltage range: DC 8V-40V; Output voltage: DC 13.8V(non-adjustable); Output current: 20A; Output power 276W. - 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, Golf cart, Club car, taxi radio, emu, car audio, LCD TV, advertising screen, LED strip lights, monitoring system, electronic systems and DIY etc. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09B71SGYN | | Best Sellers Rank | #113,990 in Computers ( See Top 100 in Computers ) #1,048 in Computer Power Supplies | | Brand | Cllena | | Color | multicolor | | Colour | multicolor | | Customer Reviews | 4.4 out of 5 stars 12 Reviews | | Input Voltage | 40 Volts | | Input voltage | 40 Volts | | Manufacturer | Cllena | | Mfr Part Number | DC840138-20 | | Output Voltage | 13.8 Volts | | Output voltage | 13.8 Volts | | Plug Type | Type C | | Plug type | Type C | ## Product Details - **Brand:** Cllena - **Colour:** multicolor - **Input voltage:** 40 Volts - **Output voltage:** 13.8 Volts - **Plug type:** Type C ## Images ![DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - Image 1](https://m.media-amazon.com/images/I/71rSDcHsg3L.jpg) ![DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - Image 2](https://m.media-amazon.com/images/I/71nCJJU55zL.jpg) ![DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - Image 3](https://m.media-amazon.com/images/I/71VO7foFkTL.jpg) ![DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - Image 4](https://m.media-amazon.com/images/I/71bBquQBZuL.jpg) ![DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - Image 5](https://m.media-amazon.com/images/I/710K-xKbI7L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: What is the peak current output for the cllena dc 8v-40v to 13.8v 20a automatic buck boost? will it run up to 25 amps, non-continuous?** A: The amps seem pretty weak on these, I installed them on my RV to convert 48v lithiums (58v actual input) and they struggle to drive the two 35 amp jacks, and I have 4 of these in parallel. Volts are low to, 58v in, 11.5-12.2 out max. **Q: What is the amp draw on the line side of the inverter** A: This is a 360 watt converter and the specs say that it is up to 95 percent efficient; so, 360 divided by a nominal 48 volts DC divided by .95 is 7.9 Amps DC. Assuming a close to worst case scenario, using a low battery voltage of 42 volts DC and 92% efficiency; it could draw 9.3 amps. For sizing a fuse, 9.3 times 1.25 is 11.6 Amps DC. In summary, if you assume a 10 amp draw and use a 15 amp fuse on the line side of this converter, you should be safe using those numbers. **Q: What is the parasitic (open circuit output) power draw of the 48->24V 60 amp model?** A: I have four of these connected in parallel and it doesn’t even register 1 watt parasitic draw between all of them. I cant measure anything less than a watt so I would imagine a single one of these would be in the very very low milliamperes parasitic draw **Q: Can i use this converter to power a standard 110v wall outlet?** A: This is a dc-dc converter. It can't take any AC input. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as it should *by J***E on 4 January 2022* Using this to guarantee a steady 13.8v output from a 12v battery box for some finnicky equipment. Works as it should. Have used two 10A models as well for about a year without any problems. Seems to be a quality device ### ⭐⭐⭐⭐⭐ very good product for a voltage regulator. *by D***K on 25 December 2021* It performed as stated. DC voltage in and a constant 13.8 volts out. nice product for my garden tractor voltage regulator. ## Frequently Bought Together - Cllena DC 8V-40V to 13.8V 20A Automatic Buck Boost Converter Step Down/Up Regulator Voltage Reducer Converter Waterproof Regulated DC Power Supply for Golf Cart Club Car LED Light - DC 12V Step Up to 24V Boost Converter 20A 480W DC Voltage Regulator Power Converter Waterproof Module Transformer for Golf Cart Club Car - DC 12v Step up to 24v Converter Regulator 5A 120W Power Supply Adapter for Motor Car Truck Vehicle Boat Solar System etc.(Accept DC9-20V Inputs) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.mx/products/349042447-dc-8v-40v-to-13-8v-20a-automatic-buck-boost](https://www.desertcart.mx/products/349042447-dc-8v-40v-to-13-8v-20a-automatic-buck-boost) --- *Product available on Desertcart Mexico* *Store origin: MX* *Last updated: 2026-06-05*