--- product_id: 573927692 title: "Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS）" brand: "ec buying" price: "HK$254" currency: HKD in_stock: true reviews_count: 5 category: "Ec Buying" url: https://www.desertcart.hk/products/573927692-mini-step-down-power-supply-intelligent-home-switching-dc-power store_origin: HK region: Hong Kong --- # 3W ultra-efficient power output Universal 90-245VAC input range 3000Vac isolation & safety certified Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） **Brand:** ec buying **Price:** HK$254 **Availability:** ✅ In Stock ## Summary > ⚡ Power your smart life with tiny tech that packs a punch! ## Quick Answers - **What is this?** Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） by ec buying - **How much does it cost?** HK$254 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/573927692-mini-step-down-power-supply-intelligent-home-switching-dc-power) ## Best For - ec buying enthusiasts ## Why This Product - Trusted ec buying brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Over 100,000 hours MTBF with robust short-circuit and over-current self-recovery protection. - • **Silent & Stable:** Low ripple and noise ensure your devices run quietly and reliably without interference. - • **Compact Powerhouse:** Ultra-thin, ultra-small design fits anywhere in your smart home setup. - • **Global Voltage Compatibility:** Seamlessly works worldwide with a wide 90-245VAC input range—no adapters needed. - • **Certified Safety & Eco-Friendly:** Meets UL, CE, EMC standards with ultra-low no-load power consumption (<0.1W) for green efficiency. ## Overview The HLK-PM01 Mini Step-Down Power Supply is a cutting-edge, ultra-compact AC-DC isolated module delivering stable 5V output from a universal 90-245VAC input. Engineered for smart home and automation applications, it boasts high efficiency (≥70%), low noise, and advanced safety features including 3000Vac isolation, short-circuit self-recovery, and compliance with UL and CE standards. With a lifespan exceeding 100,000 hours and eco-friendly design minimizing no-load power loss, this 3-pack module is the ultimate choice for professionals demanding reliable, space-saving power solutions. ## Description Features: √Ultra-thin, ultra-small, the smallest volume in the industry √Universal input voltage (90~245Vac) √Low power consumption, green environmental protection, no-load loss <0.1W √Low ripple, low noise, no external circuit required √Good output short-circuit and over-current protection and self-recovery, high efficiency and high power density √Input and output isolation withstand voltage 3000Vac √High reliability, long life design, continuous working time is more than 100,000 hours √Meet UL and CE requirements; product design meets EMC and safety testing requirements√High-quality environmentally friendly waterproof thermal conductive glue potting, moisture-proof, anti-vibration, in line with waterproof and dustproof IP65 standardsHLK-PM01 Parameter: ※Rated input voltage: 100-240VAC; Input voltage range: 90-264VAC ※Maximum input current: ≤0.2A; input surge current:≤10A ※Maximum input voltage: ≤270VAC ※Input slow start: ≤50mS ※Input low voltage efficiency: Vin= 110VAc, output full load ≥ 69%; input high voltage efficiency: Vin=220VAc, output full load ≥ 70% ※Long-term reliability: MTBF≥100,000h ※No-load rated output voltage: 5±0.1VDC; full-load rated output voltage: 5±0.2VDC ※Short-term output current limit: ≥1000mA; long-term output limit: ≥600mA ※Voltage regulation: ±0.2%; Load regulation: ±0.5% ※Output ripple and noise (mVp-p): ≤50mV, rated input voltage, full output. Tested with 20MHz bandwidth oscilloscope, load side and 10uF and 0.1uF capacitors. ※Switching machine overshoot range: (rated input voltage, output plus 10% load) ≤ 5% VO ※Output overcurrent protection: 150-200A is the output load limit ※Output short-circuit protection: direct short-circuit during normal output, and automatically resume normal operation after short-circuit Review: Good - Do the job. I have bounced the power on mine many time and no issue. Constant voltage and well packaged me. Review: Tiny and functioning well - Bought less than a month and tried one with a laser diode works out pretty well so far. Will see how long it goes. Based on the light condition, it’s pretty steady means the output voltage is steady as well. ## Features - ✔HLK-PM01:Hi-Link latest power supply module, suitable for smart home switch control device, small volume, low current, input voltage range, is the best choice of smart home. - ✔AC-DC isolated power module: meet UL, CE requirements, ultra-thin, ultra-small; full voltage input (90～245Vac); low ripple, low noise; product design meets EMC and safety test requirements; low power consumption, environmental protection , no-load loss <0.1W; 100% load aging and testing - ✔HLK-PM01: 3W ultra-small series module power supply is a small volume, high-efficiency module power supply. It has the advantages of global input voltage range, low temperature rise, low power consumption, high efficiency, high reliability, and high safety isolation. Has been widely used in smart home, automation control, communication equipment, instrumentation and other industries. - ✔AC-DC isolated power module: has good output short-circuit and over-current protection and self-recovery, high efficiency and high power density. - ✔Pacakge include :3pcs power module.(AC-DC Isolated Power Module) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09Z253MQ2 | | Brand | EC Buying | | Brand Name | EC Buying | | Country of Origin | USA | | Current Rating | 0.2 Amps | | Customer Reviews | 4.6 out of 5 stars 70 Reviews | | Item Weight | 0.7 Ounces | | Manufacturer | EC Buying | | Model Number | HLK-PM01 | | Mounting Type | PCB Mount | | Part Number | HLK-PM01 | | Power Source | Ac/Dc | | Power Source Type | Ac/Dc | | Specification Met | CE, UL | | Unit Count | 3.0 Count | ## Product Details - **Brand:** EC Buying - **Power Source:** Ac/Dc - **Mounting Type:** PCB Mount - **Current Rating:** 0.2 Amps - **Specification Met:** CE, UL ## Images ![Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Image 1](https://m.media-amazon.com/images/I/61t8PlpBkJL.jpg) ![Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Image 2](https://m.media-amazon.com/images/I/71atrpokqPL.jpg) ![Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Image 3](https://m.media-amazon.com/images/I/6159jK++6eL.jpg) ![Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Image 4](https://m.media-amazon.com/images/I/71Nn-sAKN9L.jpg) ![Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Image 5](https://m.media-amazon.com/images/I/51vgvuVLYCL.jpg) ## Questions & Answers **Q: are the pins spaced correctly for thru hole pcb? thanks** A: If you mean the standard 2.54mm distance between holes: Yes they are. **Q: Is input 110-220vac for the 3vdc output version?** A: All these modules have an input voltage between 90-264V. **Q: What method do you use to affix a wire to the pins? Seems scary to use the 24g broadboard style jumper wire on them for 120v AC** A: Those wires work fine. Not enough current going through it to need anything bigger ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by S***N on 13 May 2026* Do the job. I have bounced the power on mine many time and no issue. Constant voltage and well packaged me. ### ⭐⭐⭐⭐⭐ Tiny and functioning well *by S***N on 27 April 2025* Bought less than a month and tried one with a laser diode works out pretty well so far. Will see how long it goes. Based on the light condition, it’s pretty steady means the output voltage is steady as well. ### ⭐⭐⭐⭐⭐ Good little power supply *by S***N on 2 November 2025* Good product for the price, really. Not an instant supply when turned on, takes about a second and slow drain when off if that is an issue for your project. Someone here says is not breadboard friendly. It is, with a small modification. The supply rail of the breadboard is most likely continuous supply of power along the breadboard. You only have to snip the track underneath the bridges like sections on one end of the breadboard the mini power supply will fit perfectly sideways with the dc prongs on each side of the bridge ## Frequently Bought Together - EC Buying Mini Step-Down Power Supply, Intelligent Home Switching DC Power Module AC DC Isolated Power Module 220v to 5v, HLK PM01 AC DC Converter 220V to 5V（3PCS） - Acxico 5Pcs 5V 700mA Board Module Mini AC-DC 110V 120V 220V 230V to 5V 12V Converter Board Module Power Supply - AEDIKO 4pcs DC 5V Relay Module - 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger --- ## 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.hk/products/573927692-mini-step-down-power-supply-intelligent-home-switching-dc-power](https://www.desertcart.hk/products/573927692-mini-step-down-power-supply-intelligent-home-switching-dc-power) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-07-04*