--- product_id: 258927953 title: "2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W" brand: "bridgold" price: "₩23161" currency: KRW in_stock: true reviews_count: 5 category: "Bridgold" url: https://www.desertcart.kr/products/258927953-2pcs-b1205s-1wr2-b1205s-dc-dc-converter-input-12v-output store_origin: KR region: South Korea --- # 80% efficiency max -40°C to +105°C operating range 1.5kV isolation voltage 2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W **Brand:** bridgold **Price:** ₩23161 **Availability:** ✅ In Stock ## Summary > ⚡ Elevate your power game with precision and protection! ## Quick Answers - **What is this?** 2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W by bridgold - **How much does it cost?** ₩23161 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/258927953-2pcs-b1205s-1wr2-b1205s-dc-dc-converter-input-12v-output) ## Best For - bridgold enthusiasts ## Why This Product - Trusted bridgold brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Short-Circuit Safe:** Integrated output short-circuit protection guards your devices and peace of mind. - • **Plug & Play Precision:** International standard pin-out for seamless integration into your next project. - • **Built to Brave Extremes:** Operates flawlessly from -40°C to +105°C—reliable in any environment. - • **Power-Packed Efficiency:** Delivers up to 80% energy conversion—less waste, more power. - • **Industrial-Grade Isolation:** 1.5kV isolation ensures safe, interference-free operation in sensitive circuits. ## Overview The Bridgold B1205S-1WR2 is a compact, high-efficiency DC/DC converter module designed for stable 12V input to isolated 5V output. Featuring 1.5kV isolation voltage and built-in short-circuit protection, it operates reliably across a wide temperature range (-40°C to +105°C). Ideal for digital circuits, relay drives, and data switching, this module ensures safe, efficient power conversion in demanding environments. ## Description The B1205S-1WR2 are specially designed for applications where an isolated voltage is required in a distributed power supply system. They are suitable for Where the voltage of the input power supply is stable (voltage variation: ±10%Vin).Where isolation between input and output is necessary (isolation voltage ≤1500VDC). Where the output voltage regulation and the ripple & noise of the output voltage is not strictly required.Typical application: digit circui condition.normal low-frequency artificial circuit condition; relay drive circuit and data switching circuit condition, et Package include: 2pcs*B1205S-1WR2 Review: Excellent for low current - voltage supply isolation. - Works well with Digital LED volt/amp panel meters power requirements. Very inexpensive for what they do. Review: Worked Good! - Review for: Bridgold 2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W This little item worked perfect for me. Using it to power a volt/amp meter that requires an isolated 5VDC supply (https://www.desertcart.com/gp/product/B019R8LMDO). Mounted on a bit of copper clad printed circuit board and placed inside my home made battery/solar power box. Power supply does not get warm in this application. Perfect! Be sure you can find the product page again on desertcart so you can see the wiring diagram, it is not included in the package. Of course I will be back to let you know should it fail... ## Features - Built-in output short-circuit protection function, excellent performance - Operating temperature range: -40℃ to +105℃ - High efficiency up to 80% - Isolation voltage: 1.5K VDC - International standard pin-out ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08GPCR8FF | | Best Sellers Rank | #450,863 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,989 in Power Converters | | Brand | Bridgold | | Color | black | | Customer Reviews | 4.2 4.2 out of 5 stars (20) | | Input Voltage | 5 Volts | | Item Weight | 0.05 Kilograms | | Manufacturer | Bridgold | | Mfr Part Number | bg-124 | | Model Number | B1205S-1WR2 | | Number of Outlets | 1 | | Output Voltage | 5 Volts (DC) | | Plug Type | Micro-USB | ## Product Details - **Brand:** Bridgold - **Color:** black - **Input Voltage:** 5 Volts - **Item Weight:** 0.05 Kilograms - **Output Voltage:** 5 Volts (DC) ## Images ![2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W - Image 1](https://m.media-amazon.com/images/I/51M6ixiUvIL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent for low current - voltage supply isolation. *by D***T on November 29, 2024* Works well with Digital LED volt/amp panel meters power requirements. Very inexpensive for what they do. ### ⭐⭐⭐⭐⭐ Worked Good! *by #***# on August 28, 2023* Review for: Bridgold 2pcs B1205S-1WR2 B1205S DC/DC Converter Input 12V Output 5V Isolation Power Supply Module Step Down High Efficiency Module Receivers，1W This little item worked perfect for me. Using it to power a volt/amp meter that requires an isolated 5VDC supply (https://www.amazon.com/gp/product/B019R8LMDO). Mounted on a bit of copper clad printed circuit board and placed inside my home made battery/solar power box. Power supply does not get warm in this application. Perfect! Be sure you can find the product page again on Amazon so you can see the wiring diagram, it is not included in the package. Of course I will be back to let you know should it fail... ### ⭐⭐ Review *by J***A on February 6, 2025* Lo compre para aislamiento de tierra que producen los bluetooth Mp3, hice todo lo recomendado por el fabricante, si aislo las tierras pero falso que dlkmina el ruido, soli lo logre colocando otra fudnte de alimentacion independiente para este componente. --- ## 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.kr/products/258927953-2pcs-b1205s-1wr2-b1205s-dc-dc-converter-input-12v-output](https://www.desertcart.kr/products/258927953-2pcs-b1205s-1wr2-b1205s-dc-dc-converter-input-12v-output) --- *Product available on Desertcart South Korea* *Store origin: KR* *Last updated: 2026-07-15*