---
product_id: 165340021
title: "KeerSen DC 5V 3.8A 20W Switching Power Supply Regulated Transformer w/Short Circuit and Over Current Protection (5V3.8A)"
brand: "keersen"
price: "FREE"
currency: VND
in_stock: false
reviews_count: 3
url: https://www.desertcart.vn/products/165340021-keersen-dc-5v-3-8a-20w-switching-power-supply-regulated
store_origin: VN
region: Vietnam
---

# KeerSen DC 5V 3.8A 20W Switching Power Supply Regulated Transformer w/Short Circuit and Over Current Protection (5V3.8A)

**Brand:** keersen
**Price:** FREE
**Availability:** ❌ Out of Stock

## Quick Answers

- **What is this?** KeerSen DC 5V 3.8A 20W Switching Power Supply Regulated Transformer w/Short Circuit and Over Current Protection (5V3.8A) by keersen
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/165340021-keersen-dc-5v-3-8a-20w-switching-power-supply-regulated)

## Best For

- keersen enthusiasts

## Why This Product

- Trusted keersen brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Descriptions: Our KeerSen LED Switching Power Supply, a reliable switching power supply with high quality material, durable and safety in use. A new style Switching Power Supply which can keep the voltage stability. Great switching power supply for home appliances. Universal AC input/full range. Full load burn-in test. Features: 1. DC 5V 3.8A Switching power supply, convert AC 110/220V to DC 5V. 2. Compact small size, high efficiency and stable performance. 3. Metal housing, good heat dissipation, built-in indicator light. 4. With overload and short circuit protection. 5. Wide input voltage range, steady and precise output voltage. 6. Mainly used for CCTV camera, LED flexible strip, LED decorative lighting, street light, building lighting, stage lighting, LED display home appliances and so on. Specifications: Product Name: LED Switching Power Supply Model: S-19-5 Safety Compliance: CE, RoHS Input: AC110V/220V(+/-15%) Output: DC 5V 3.8A Rated Power: 19W Screw Terminal Number: 5 Material: Metal, Electronic Parts Fix Screw Hole Diameter: 2.5mm(0.1 inch) Body Size: 85mm x 58mm x 35mm(L*W*H) Main Color: Silver Tone Net Weight: 145g Package Contents: 1 x LED Switching Power Supply Notes: 1. High Voltage inside ,do not remove the cover. Qualified service personnel only. 2. 110V/220V is selected by switch before power on, please check the input voltage avolding damage.

## Features

- DC 5V 3.8A 20W Switching power supply, convert AC 110/220V to DC 5V.
- Protection: Shortage Protection, Overload Protection, Over Voltage Protection.
- Safety Compliance CE and RoHS, high efficiency and stable performance.
- Wide input voltage range, steady and precise output voltage.
- Great power transformer for electronic equipment, Led Lighting, home appliance etc.

## Images

![KeerSen DC 5V 3.8A 20W Switching Power Supply Regulated Transformer w/Short Circuit and Over Current Protection (5V3.8A) - Image 1](https://images-na.ssl-images-amazon.com/images/I/71pX7PfFKlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Decent quality
  

*by W***E on Reviewed in the United Kingdom on 13 November 2017*

Decent quality PSU.  It does tend to "sing" a bit at certain loads, but it's a steady 5 volts and isnt running too hot.

### ⭐ 







  
  
    Selling returned items as new?
  

*by A***R on Reviewed in the United Kingdom on 29 April 2017*

Item arrived promptly but it has obviously been used before.  This was either a returned item or a second.  The case is bent and circuit board is damaged from where a bolt has clamped the psu down.

### ⭐⭐⭐⭐⭐ 







  
  
    Five Stars
  

*by K***N on Reviewed in the United Kingdom on 14 March 2018*

all good

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**Shop now:** [https://www.desertcart.vn/products/165340021-keersen-dc-5v-3-8a-20w-switching-power-supply-regulated](https://www.desertcart.vn/products/165340021-keersen-dc-5v-3-8a-20w-switching-power-supply-regulated)

---

*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-03*