--- product_id: 476148528 title: "4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug" brand: "mtytot" price: "54.66 DT" currency: TND in_stock: true reviews_count: 9 category: "Mtytot" url: https://www.desertcart.tn/products/476148528-4-2v-1a-1000ma-power-supply-adapter-ac-to-dc store_origin: TN region: Tunisia --- # 4.2V DC output for precise power 5.5mm x 2.5mm DC plug size Multi-layer safety protections 4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug **Brand:** mtytot **Price:** 54.66 DT **Availability:** ✅ In Stock ## Summary > 🔋 Power up smart, stay protected, and never miss a beat! ## Quick Answers - **What is this?** 4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug by mtytot - **How much does it cost?** 54.66 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/476148528-4-2v-1a-1000ma-power-supply-adapter-ac-to-dc) ## Best For - mtytot enthusiasts ## Why This Product - Trusted mtytot brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First Design:** Built-in over-current, over-voltage, overcharge, and short circuit protections keep your devices safe. - • **Versatile Application:** Ideal for powering model aircraft, remote control toys, and decorative lighting—ditch disposable batteries! - • **Reliable Power Delivery:** Consistent 1A current ensures stable device operation without interruptions. - • **Durable & Fire-Resistant:** Constructed with PC+ABS materials to withstand high temperatures and extend lifespan. - • **Universal Voltage Compatibility:** Supports 100-240V AC input, perfect for global use and travel-ready. ## Overview The MTYTOT 4.2V 1A AC/DC Power Supply Adapter delivers reliable, precise power with a 5.5mm x 2.5mm DC plug, featuring comprehensive safety protections and durable fire-resistant housing. Perfect for hobbyists and professionals powering model aircraft, remote control devices, or decorative electronics, it ensures stable performance worldwide with universal voltage compatibility. ## Description Product description Input voltage: AC 100-240V. Output voltage: DC 4.2V 1A. Output Current: 1A at constant charging current reduction. Voltage accuracy: ±5% (no load) Voltage Frequency: 50 / 60Hz. Efficiency: 85%. Output line length: about 3.2ft Weight:75g/2.6oz. Output interface: 5.5mm (routside diameter) * 2.5mm (inner diamete) Plug polarity: the positive (+) outside negative (-). Package include : 1pcs 4.2V Power Adapter Kindly note (1)Please check the DC socket type, Power consumption(must not exceed the Max output of the adapter), polarity of the device before ordering, or it may cause problem or damage the device. (2) This product has many kinds of protection functions, enter the protection mode, LED lights will flashing red light. When this happens, unplug the adapter immediately and check if the circuit is short-circuited, if the electrical power exceeds the rated power of the adapter, etc. (3) Keep dry and ventilated environment, avoid hot and humid . Review: Works fine - Works fine. Review: MUY BUENA INVERSION - EXELENTE PRODUCTO ## Features - Input: 100-240 V AC 50/60 Hz; Output: DC 4.2V 1A(1000mA) MAX . - DC plug size: 5.5mmx2.5mm ; Inside diameter is positive” +”,outer diameter is negative” - “; Please confirm whether the DC interface of this adapter matches the interface of your device before purchasing. - This product has many kinds of protection functions, With over-current protection, over-voltage protection, overcharge protection, short circuit protection.enter the protection mode, LED lights will flashing red light. When this happens, unplug the adapter immediately and check if the circuit is short-circuited, if the electrical power exceeds the rated power of the adapter, etc. - Built in high quality electronic components which improve the longer service life and make the adapter more reliable. The outer shell of adapter are made of fire-resistant materials, PC + ABS, be able to withstand high temperatures. - the adapter used for the aircraft model aircraft, remote control airplanes, electric cars and other toy model aircraft / Less than 1A ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09X45L332 | | Additional Features | Short Circuit Protection | | Amperage | 1 Amps | | Brand | MTYTOT | | Color | Black | | Compatible Devices | PC | | Compatible Power Plug Type | Type A - 2 pin (North American) | | Connectivity Technology | DC Barrel | | Connector Type | Barrel Jack | | Current | AC to DC | | Current Rating | 1 Amps | | Customer Package Type | Flat Free Package | | Customer Reviews | 4.5 out of 5 stars 108 Reviews | | Frequency Range | 50/60 Hz | | Input Voltage | 240 Volts (AC) | | Item Weight | 0.04 Kilograms | | Main Power Connector Type | 2 Pin | | Manufacturer | BIYANGXIANJIEYISHANGMAOYOUXIANGONGSI | | Mfr Part Number | 8ded553d-debd-4e1e-90dd-76d73c145cc7 | | Model Number | MYT04.201BK | | Mounting Type | Wall Mount | | Number of Items | 1 | | Number of Power Levels | 1 | | Output Current | 1 Amps | | Output Voltage | 4.2 Volts (DC) | | Plug Type | DC Barrel | | Portable | No | | Power Plug | Type A - 2 pin (North American) | | Power Source | Corded Electric | | Special Feature | Short Circuit Protection | | Unit Count | 1.0 Count | | Wattage | 1 watts | ## Product Details - **Amperage:** 1 Amps - **Brand:** MTYTOT - **Color:** Black - **Compatible Devices:** PC - **Current Rating:** 1 Amps - **Frequency Range:** 50/60 Hz - **Item Weight:** 0.04 Kilograms - **Main Power Connector Type:** 2 Pin - **Special Feature:** Short Circuit Protection - **Wattage:** 1 watts ## Images ![4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - Image 1](https://m.media-amazon.com/images/I/61JI7VPCG8L.jpg) ![4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - Image 2](https://m.media-amazon.com/images/I/41zDrP1iWvL.jpg) ![4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - Image 3](https://m.media-amazon.com/images/I/61WEKv19vuL.jpg) ![4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - Image 4](https://m.media-amazon.com/images/I/712nmCU4lNL.jpg) ![4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - Image 5](https://m.media-amazon.com/images/I/61QntLV3YLL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works fine *by P***I on December 27, 2025* Works fine. ### ⭐⭐⭐⭐⭐ MUY BUENA INVERSION *by R***R on April 16, 2026* EXELENTE PRODUCTO ### ⭐⭐⭐⭐⭐ Works great *by M***K on February 1, 2025* Used it to replace 3 AA batteries for some decorative lighting. ## Frequently Bought Together - MTYTOT 4.2V 1A 1000mA Power Supply Adapter AC to DC Power Supply Transformer 5.5mmx2.5mm DC Plug - 3V 1Amp Power Adapter Supply 100-240 AC to DC 3Volt 1000mA 5.5mmx 2.5mm Plug 3V 1A AC/DC Power Supply Transformer - 4.5V 1Amp AC to DC Adapter Power Supply, 4.5W 1000ma AC 100-240V to 4.5V, 2.5mm X 5.5mm Plug(Pay Attention to The Size. Make Sure it Works for Your Products) --- ## 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.tn/products/476148528-4-2v-1a-1000ma-power-supply-adapter-ac-to-dc](https://www.desertcart.tn/products/476148528-4-2v-1a-1000ma-power-supply-adapter-ac-to-dc) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-06-02*