--- product_id: 102797829 title: "KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W)" brand: "brand: knacro" price: "VT10194" currency: VUV in_stock: true reviews_count: 4 url: https://www.desertcart.vu/products/102797829-knacro-dc-dc-buck-converter-12v-24v-8-40v-to store_origin: VU region: Vanuatu --- # KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) **Brand:** brand: knacro **Price:** VT10194 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) by brand: knacro - **How much does it cost?** VT10194 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/102797829-knacro-dc-dc-buck-converter-12v-24v-8-40v-to) ## Best For - brand: knacro enthusiasts ## Why This Product - Trusted brand: knacro brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description Size:5V 30A 150W Adopts synchronous rectification technology; high transfer efficiency of 95 percent; small heating generation Full-potting, waterproof, anti-shock, waterproof, moisture-proof and dust-proof Small size of 74x74x32mm; Weight: 260g; tiny in size and light in weight With overcurrent and short-circuit protection, therefore safe to use Input voltage: 12V 24V (8V-40V, long-term operating voltage: 11v-30v) Output voltage: 5V Output Current: 30A Output Power: 150W Conversion efficiency: >93% Soft start time: about 500mS Output ripple: 30mV(Max) 20M Bandwidth Operate temperature(industrial): -40 to +85 Celsius(please enhance cooling or use lower power) Waterproof rating:IP68 Temperature rise in full load: 50 Celsius Adjust ratio in load: +/— 1% Volt adjust ratio: +/- 2% Dynamic response speed: 5% 200uS Module Properties: non-isolated buck module (BUCK) SIZE:74*74*32MM/2.91*2.91*1.26 inch;重量：260g/0.57l;Rectification: synchronous rectification Input reverse connection protection: no(please connect diode in series to the input if you need input reverse-connection protection) Applications: Bus, CMB, large trucks, motor, solar generate electricity, display screen of bus and taxi, car audio device, LCD TV, LED, interphone, monitoring system, etc. Note: 1.Please add fuse in the input; and positive and negative pole of voltage should not be connected reversely, or power module would burn 2.To ensure the module outputs enough voltage and power, please make sure enough voltage and power of input power supply 3.We suggest you to leave current margin for longer usage life; and if your output current reaches the Max, you must enhance cooling Package Includes: 1x DC/DC Converter ## Features - Input range: DC 12V 24V (8V-40V),Output voltage:5V/40A/200W.High efficiency:>93%.Reliable, low heat dissipation ; - With overload / over-current / over / low voltage protection, stable performance. - Light compact, convenient to use and transport; Auto recovery - All epoxy sealed containers with Waterproof Housing; Used in vehicles, security systems, telecommunications, medical equipments, instruments etc - Widely used in Car device, such as LED Display, Hard Disk Player, MP3, DVD, GPS, etc, ## Images ![KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) - Image 1](https://images-na.ssl-images-amazon.com/images/I/71ToQy-3kbL.jpg) ![KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) - Image 2](https://images-na.ssl-images-amazon.com/images/I/71WLbDHtbyL.jpg) ![KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) - Image 3](https://images-na.ssl-images-amazon.com/images/I/71BLhuNRXJL.jpg) ![KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) - Image 4](https://images-na.ssl-images-amazon.com/images/I/41pJwkCbgGL.jpg) ![KNACRO DC-DC Buck Converter 12V 24V (8-40V) to 5V 30A 150W Step-Down Voltage Transformer Volt Regulator Power Supply Inverter Module Waterproof (5V 30A 150W) - Image 5](https://images-na.ssl-images-amazon.com/images/I/61JOE6-nlZL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great For Stepping Down to 5V *by M***7 on Reviewed in the United States on November 24, 2019* Used this to make a trigger for a McIntosh amplifier since they use a less voltage for a trigger input to power up the unit than most other amplifiers. This worked perfectly! ### ⭐⭐⭐⭐⭐ Convert vehicle power to 5 volts for sign *by P***Y on Reviewed in the United States on October 13, 2019* Used to power LED signboard mounted to vehicle. Converts 12 volt truck power to 5 volts for LED message board. ### ⭐⭐⭐⭐⭐ excellent *by T***N on Reviewed in the United States on July 11, 2020* works great doesnt get really hot --- ## 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.vu/products/102797829-knacro-dc-dc-buck-converter-12v-24v-8-40v-to](https://www.desertcart.vu/products/102797829-knacro-dc-dc-buck-converter-12v-24v-8-40v-to) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-09*