---
product_id: 39486546
title: "HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor"
brand: "hiletgo"
price: "$27.04"
currency: USD
in_stock: true
reviews_count: 4
url: https://www.desertcart.us/products/39486546-hiletgo-2pcs-tsl2561-luminosity-sensor-infrared-light-brightness-sensor-luminance
store_origin: US
region: United States of America
---

# 40000 lux max brightness I2C direct communication 3V low voltage operation HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor

**Brand:** hiletgo
**Price:** $27.04
**Availability:** ✅ In Stock

## Summary

> 💡 Illuminate your smart projects with precision and power!

## Quick Answers

- **What is this?** HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor by hiletgo
- **How much does it cost?** $27.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/39486546-hiletgo-2pcs-tsl2561-luminosity-sensor-infrared-light-brightness-sensor-luminance)

## Best For

- hiletgo enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable:** Sleek tubular copper build fits discreetly into any indoor setup.
- • **Infrared Innovation:** Advanced IR sensor tech ensures reliable performance in diverse lighting conditions.
- • **Seamless Connectivity:** Effortlessly interface via I2C for real-time brightness monitoring.
- • **Energy-Efficient Design:** Operate at a minimal 0.5W power draw, perfect for sustainable projects.
- • **Precision Light Sensing:** Capture ultra-accurate luminance data with dual ADC integration.

## Overview

The HiLetgo TSL2561 Luminosity Sensor is a compact, energy-efficient infrared light sensor featuring dual analog-to-digital converters and direct I2C communication. Delivering up to 40000 lux brightness detection at just 3 volts, it’s ideal for precise indoor luminance monitoring in smart devices and IoT applications.

## Description

HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor

## Features

- TSL2561 Luminosity Sensor
- Infrared Light Brightness Sensor Luminance Sensor
- The TSL2561 Luminosity Sensor Breakout is a sophisticated light sensor
- The TSL2561 is capable of direct I2C communication
- the TSL12561 contains two integrating analog-to-digital converters (ADC)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HiLetgo |
| Wattage | 1.8 	Milliwatts |
| Voltage | 3 Volts |
| Color Temperature | 40 Kelvin |
| Number of Items | 1 |
| Brightness | 40000 lux |
| Shape | Tubular(T) |
| Material | copper |
| Connectivity Technology | Infrared |
| Indoor/Outdoor Usage | Indoor |
| Connectivity Protocol | Infrared |
| Sensor Technology | Infrared |
| Item Package Quantity | 1 |
| Light Source Type | Infrared |
| Specification Met | ma |
| Light Source Wattage | 0.5 Watts |
| Accepted voltage frequency | 100 to 240 Volts and 50 Hertz to 60 Hertz |
| Control Method | App |
| Manufacturer | HiLetgo |
| Part Number | 3-01-1123 |
| Item Weight | 0.81 ounces |
| Package Dimensions | 1.1 x 0.7 x 0.6 inches |
| Item model number | 3-01-1123 |
| Is Discontinued By Manufacturer | No |
| Batteries Included? | No |
| Batteries Required? | No |
| Wattage | 0.5 Watts |

## Product Details

- **Brand:** HiLetgo
- **Wattage:** 1.8 	Milliwatts
- **Voltage:** 3 Volts
- **Color Temperature:** 40 Kelvin
- **Number of Items:** 1

## Images

![HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor - Image 1](https://m.media-amazon.com/images/I/61N05u6joFL.jpg)
![HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor - Image 2](https://m.media-amazon.com/images/I/51dyS1jgbBL.jpg)
![HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor - Image 3](https://m.media-amazon.com/images/I/512a2YK-hKL.jpg)
![HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor - Image 4](https://m.media-amazon.com/images/I/51tE6kW+VIL.jpg)
![HiLetgo 2PCS TSL2561 Luminosity Sensor Infrared Light Brightness Sensor Luminance Sensor - Image 5](https://m.media-amazon.com/images/I/51+Du5sRIiL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works as intended
*by E***N on November 13, 2024*

Perfect match for my imperfect project! No issues.

### ⭐⭐⭐⭐⭐ Works Perfect
*by A***R on November 15, 2021*

Works as expected

### ⭐⭐⭐⭐ Seems to be a good implimentation of the TSL2561 Luminosity Sensor
*by L***K on April 18, 2021*

These work well and are very reasonably priced. One reviewer indicated that this implementation does not permit the selection of the I2C address, and they are correct to a point, in that the address line is not brought out to a pin like it is on the Adafruit version, but it is selectable using the small solder pads provided on the circuit board (circled in attached picture). As supplied the address is 0x39 ("TSL2651_ADDR_FLOAT" in the Adafruit Arduino library). If the center and "L" are bridged together the address is 0x29 ("TSL2651_ADDR_LOW" in the Adafruit Arduino library), and if the center and the "H" are bridged together the address is 0x49 ("TSL2651_ADDR_HIGH" in the Adafruit Arduino library). Using this method of addressing you can have up to three of these sensors on a single I2C bus without a multiplexer.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*