---
product_id: 15098897
title: "Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp"
brand: "lightobject"
price: "R$261"
currency: BRL
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.br/products/15098897-lightobject-essr-40dac-solid-state-relay-dc-in-ac-out
store_origin: BR
region: Brazil
---

# 40A power handling No signal noise 3V-32V DC input Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp

**Brand:** lightobject
**Price:** R$261
**Availability:** ✅ In Stock

## Summary

> 🔌 Power Up Your Projects with Confidence!

## Quick Answers

- **What is this?** Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp by lightobject
- **How much does it cost?** R$261 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/15098897-lightobject-essr-40dac-solid-state-relay-dc-in-ac-out)

## Best For

- lightobject enthusiasts

## Why This Product

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

## Key Features

- • **Reliable Quality:** Crafted in China with precision engineering for dependable performance.
- • **Durable Performance:** Experience longevity with no mechanical movement.
- • **User-Friendly Design:** Effortless installation and operation for all skill levels.
- • **Versatile Applications:** Perfect for temperature controllers, heaters, small ovens, furnaces, and kilns.
- • **Whisper-Quiet Operation:** Enjoy a noise-free environment with zero signal interference.

## Overview

The ESSR-40DAC Solid State Relay is a high-performance device designed for seamless DC to AC conversion, capable of handling up to 40 amps. With no mechanical parts, it ensures a longer lifespan and operates silently, making it ideal for various applications including temperature control and heating systems.

## Description

Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp

## Features

- No mechanical movement so it lasts longer. No signal noise. Easy to use. Ideal for Temperature Controller, Heater, small oven, Furnace, and Kiln
- Input: 3V-32V DC
- Made in China

## Images

![Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp - Image 1](https://m.media-amazon.com/images/I/81Hq0Hyq+QL.jpg)
![Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp - Image 2](https://m.media-amazon.com/images/I/315FnSLTGhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quiet, reliable operation
*by D***N on October 26, 2013*

What else is there to say. It works quite well for it's intended purpose. Be sure you add a heat sink and heat conductor paste. I use them for controlling a small chiller and heating elements for brewing. Have not had one fail yet.

### ⭐⭐⭐⭐ Keep it cool! Good for 1/2 the rated capacity
*by M***T on August 14, 2014*

Lasted about 6 months before overheating @ 110v 15amp draw for 30 hours continuous load properly heat-sinked but in hot environment. Seems to be a decent quality product overall, especially at this price point.The reason for failure was an excessively hot environment in my Softub enclosed in a metal case with no ventilation. It had a heatsink but evidently wasn't enough when on for 30 hours straight in 90 degree weather (outdoors).It's not the product's fault, I just need to vent it better or add a fan to help cool it properly. Only reason for 4 stars instead of 5 is because I expected it to not have heat problems when drawing less than 1/2 the rated amperage and 1/3 of the rated voltage.Bottom line: Don't trust the labeled ratings, keep it about half the ratings for amps, in a vented environment with a heat sink and you will be fine. I ordered 2 more knowing the limitations and won't think twice about buying more.

### ⭐ Worthless junk! Working on a project with this and ...
*by P***S on February 15, 2015*

Worthless junk!Working on a project with this and tested my wiring with the relay triggered to make sure I had everything wired up correctly. I then disconnected the input trigger voltage making sure the power would cut out. It did not. I tested the relay completely disconnected from everything and there is continuity between leads one and two. I never used any voltages outside of the range, I only used 9 volts DC on terminals 3 and 4 with 110 VAC on terminals 1 & 2. This is junk and it does not work.

## Frequently Bought Together

- Lightobject ESSR-40DAC Solid State Relay DC In AC Out 40 amp
- 5/16" ID Silicon Tubing, JoyTube Food Grade Silicon Tubing 5/16" ID x 7/16" OD 50 Feet High Temp Pure Silicone Hose Tube for Home Brewing Winemaking

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**Shop now:** [https://www.desertcart.com.br/products/15098897-lightobject-essr-40dac-solid-state-relay-dc-in-ac-out](https://www.desertcart.com.br/products/15098897-lightobject-essr-40dac-solid-state-relay-dc-in-ac-out)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-03-14*