---
product_id: 41962378
title: "Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output)"
brand: "cocar"
price: "8306 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "Cocar"
url: https://www.desertcart.kg/products/41962378-car-voltage-stabilizer-4a-48w-heavy-duty-12v-voltage-regulator
store_origin: KG
region: Kyrgyzstan
---

# 4A Power Output Multi-Protection Features IP67 Waterproof Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output)

**Brand:** cocar
**Price:** 8306 som
**Availability:** ✅ In Stock

## Summary

> 🔋 Power Up Your Journey with Confidence!

## Quick Answers

- **What is this?** Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output) by cocar
- **How much does it cost?** 8306 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/41962378-car-voltage-stabilizer-4a-48w-heavy-duty-12v-voltage-regulator)

## Best For

- cocar enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Comprehensive protection against over-voltage, under-voltage, overload, and short circuits.
- • **Built to Last:** IP67 waterproof alloy housing for durability in any environment.
- • **Peace of Mind:** Comes with a 3-year warranty for worry-free usage.
- • **Compact Convenience:** Slim design (74mm x 74mm x 32mm) for easy installation in tight spaces.
- • **Stability on the Go:** Ensure your devices run smoothly with a consistent DC 12V output.

## Overview

The Car DC 12V 4A Voltage Stabilizer Surge Protector is designed to safeguard your devices from unstable voltages, making it perfect for vehicles, boats, and solar systems. With a wide input voltage range of DC10-36V and a stable DC 12V output, this compact regulator features an IP67 waterproof alloy housing and built-in protections for a reliable performance in various applications.

## Description

Buy Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output): Power Converters - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Seems solid. - I wired this in over the weekend without taking it apart first. I’m using it for suspension/rock lighting (x11 3-led modules 12v .250mA). x4 come on at door open & the rest on switch. I don’t care if it shorts out & blows my lights, they cost me $6 to replace. I wired a direct feed from an aux fuse panel that I put in that read 14.2vDC with engine idle. I grounded both leads & body to chassis & gave it a 5A fuse. The tested output is 18awg at 10’ & with x4 LEDs powered, It showed 12.20vDC at 1A at the LEDs & the same at the regulator with no load. At idle with no load, this module showed .001A for a moment then nothing. I couldn’t find it in mA or uA. I decided to leave it wired direct to observe the draw and because my 95 Chevy truck is negative pulsed interior lighting with positive ground. I made it a relay activated output & I have the rocklights activate on domelight trigger for door locking/unlocking. Note: If you do this type of lighting, keep in mind the negative trigger floats a positive voltage when not activated due to the lighting control module under the dash so keep the coil circuit dedicated to minimize load/shorting/abnormal pathways to battery through the control module. I did accidentally send my rigids through the module for a brief moment & the drain of x2 dually driving pods, sent it to 6.5A for a second with no issues. I’ve noticed no heat buildup on thermal at 1A nominal & 2.5A occasional. I do have a slightly weaker fm station that’s in stereo maybe 70% of the time. When this is running under the hood (1A continuous draw), it takes the station out of stereo & gives me enough static to not be able to hear it. Closer antennas are not effected. Later I plan to try a capacitor, choke or diode combinations to attempt to remove the interference. I’ve not put it on the scope cause again, I don’t care about outcome in this project.
Review: Acrid Odor, And No More Magic Smoke ;) - I purchased several of these for 12v cell modems (<1A). Easy to install, but two of them shorted out in less than a day...

## Features

- [12V DC Voltage Stabilizer ] Heavy-duty car voltage regulator 12v accepts DC 10-36V input and delivers a stable 12V 4A (48W) output, perfect as a voltage stabilizer 12v for cars, trucks, RVs, boats, campers, and solar power systems.
- [Protect Sensitive Electronics] This 12v dc voltage regulator safeguards your devices from unstable voltage, dc dc stabilizer preventing damage from old car batteries, power fluctuations, or electrical surges.
- [Waterproof & Rugged Design] 12v surge protector built with IP67 waterproof alloy housing and sealed with heat-conduction silica gel for durability in outdoor or harsh environments.
- [Comprehensive Safety Protection] 12v voltage regulator Integrated protection against over-voltage, under-voltage, overload, overheating, and short circuits ensures safe and reliable power supply.
- [Compact & Easy Installation] 12v DC Stabilizer Slim, lightweight build with 12cm/4.7-inch wire length for quick installation. Size: 74mm x 74mm x 32mm (LWH); Net Weight: 250g.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y5JHZG2 |
| Best Sellers Rank | #231,078 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #942 in Power Converters |
| Brand | Cocar |
| Color | 12V Surge Protector |
| Customer Reviews | 4.0 out of 5 stars 819 Reviews |
| Input Voltage | 10 Volts (DC) |
| Item Dimensions | 2.91 x 2.91 x 1.26 inches |
| Item Weight | 230 Grams |
| Item dimensions L x W x H | 2.91 x 2.91 x 1.26 inches |
| Manufacturer | Cocar |
| Mfr Part Number | 12T12-4A |
| Model Number | 12T12-4A |
| Number of Outlets | 1 |
| Output Voltage | 12 Volts |
| Plug Type | 2 Pin or DC power jack |
| UPC | 612032292973 |
| Warranty Description | 1 year |

## Product Details

- **Brand:** Cocar
- **Color:** 12V Surge Protector
- **Item Weight:** 250 Grams
- **Input Voltage:** 1E+1 Volts (DC)
- **Item dimensions L x W x H:** 2.91 x 2.91 x 1.26 inches

## Images

![Car Voltage Stabilizer, 4A 48W Heavy Duty 12v Voltage Regulator Surge Protector for Car Battery Truck Vehicle Boat RV Camper Solar System (10-36V Input, 12V Output) - Image 1](https://m.media-amazon.com/images/I/61Wt6VYa-aL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Seems solid.
*by B***N on March 19, 2019*

I wired this in over the weekend without taking it apart first. I’m using it for suspension/rock lighting (x11 3-led modules 12v .250mA). x4 come on at door open & the rest on switch. I don’t care if it shorts out & blows my lights, they cost me $6 to replace. I wired a direct feed from an aux fuse panel that I put in that read 14.2vDC with engine idle. I grounded both leads & body to chassis & gave it a 5A fuse. The tested output is 18awg at 10’ & with x4 LEDs powered, It showed 12.20vDC at 1A at the LEDs & the same at the regulator with no load. At idle with no load, this module showed .001A for a moment then nothing. I couldn’t find it in mA or uA. I decided to leave it wired direct to observe the draw and because my 95 Chevy truck is negative pulsed interior lighting with positive ground. I made it a relay activated output & I have the rocklights activate on domelight trigger for door locking/unlocking. Note: If you do this type of lighting, keep in mind the negative trigger floats a positive voltage when not activated due to the lighting control module under the dash so keep the coil circuit dedicated to minimize load/shorting/abnormal pathways to battery through the control module. I did accidentally send my rigids through the module for a brief moment & the drain of x2 dually driving pods, sent it to 6.5A for a second with no issues. I’ve noticed no heat buildup on thermal at 1A nominal & 2.5A occasional. I do have a slightly weaker fm station that’s in stereo maybe 70% of the time. When this is running under the hood (1A continuous draw), it takes the station out of stereo & gives me enough static to not be able to hear it. Closer antennas are not effected. Later I plan to try a capacitor, choke or diode combinations to attempt to remove the interference. I’ve not put it on the scope cause again, I don’t care about outcome in this project.

### ⭐ Acrid Odor, And No More Magic Smoke ;)
*by J***B on February 12, 2022*

I purchased several of these for 12v cell modems (<1A). Easy to install, but two of them shorted out in less than a day...

### ⭐⭐⭐⭐⭐ Provides stable, consistent 12 volts
*by I***R on September 15, 2024*

I use this to provide a stable, consistent 12 volts for my security cameras. My solar panels and battery system voltage can vary from 10 to 14 volts. The regulator has been functioning perfectly.

## Frequently Bought Together

- Cocar 12T12-4A Car DC 12V 4A Voltage Stabilizer Surge Protector Power Supply Regulator for Auto Truck Vehicle Boat Solar System etc.(DC10-36V Input, DC12V Output)
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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-05-08*