--- product_id: 41099661 title: "30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539)" price: "40.49 DT" currency: TND in_stock: true reviews_count: 8 url: https://www.desertcart.tn/products/41099661-30-pieces-photoresistor-photo-light-sensitive-resistor-light-dependent-resistor store_origin: TN region: Tunisia --- # 150V max voltage 5 mm precision sensor -30 to +70°C operating range 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539) **Price:** 40.49 DT **Availability:** ✅ In Stock ## Summary > 🔍 Illuminate your projects with precision and power! ## Quick Answers - **What is this?** 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539) - **How much does it cost?** 40.49 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/41099661-30-pieces-photoresistor-photo-light-sensitive-resistor-light-dependent-resistor) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Makers & Pros:** 4.6-star rating from 800+ users proves reliability in creative and industrial setups. - • **Precision Light Sensitivity:** Spectral peak at 540 nm ensures accurate light detection for smart automation. - • **Wide Temperature Resilience:** Operates flawlessly from -30°C to +70°C, built for real-world conditions. - • **Robust Voltage & Power Handling:** Supports up to 150V DC and 100 mW for versatile project compatibility. - • **Bulk Pack for Endless Innovation:** 30 high-quality photoresistors ready to power your next DIY breakthrough. ## Overview The EBOOT 30 Pieces Photoresistor set features 5 mm GM5539 sensors with a spectral peak at 540 nm, supporting up to 150V DC and 100 mW power. Designed for durability, they operate between -30°C and +70°C, making them ideal for DIY electronics, smart home automation, and industrial light sensing applications. Highly rated by over 800 users, this pack offers both quantity and quality for professional-grade projects. ## Description EBOOT 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539): desertcart.com: Industrial & Scientific Review: Works great with an ESP32 controller. - I heat my well house in the winter with a 60 watt light bulb. I've been using an ESP32 in the well house to transmit the temperature to my network. I've just added this photoresistor to monitor the status of the light bulb. If the light should be on and the photo resistor doesn't detect the light, it will send me a text message. Review: Great Price. - GOOD QUALITY. ## Features - Quantity: 30 x photoresistor, 5 mm GM5539 resistor - Maximum voltage: 150 Volt DC - Maximum wattage: 100 mW; Spectral peak: 540 nm - Light resistance (10 Lux): 50-100 Kohm; Operating temperature: - 30 ~ + 70 degree Celsius - Enough photo light sensitive resistors are handy for your DIY and hand working projects ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.6 out of 5 stars 828 Reviews | ## Images ![30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539) - Image 1](https://m.media-amazon.com/images/I/81YI5k-fUAL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: What is the dark resistance?** A: Under a bright halogen lamp they range between 300-500 Ohms, in a poorly lit room (eg light of my monitor and photoresistor not directly illuminated but enough light to see) they range from 1 to 10 M Ohms then increase to 12-15 M Ohms and higher in darker parts of the room. When completely darkened with my meter on the 20M Ohm scale the resistance increases until my meter no longer can provide a value, so > 20MOhm. **Q: Will this work on a 12v 1.3ah battery** A: It says in the info about it 150 volts is the maximum. I would say 12v should be fine. If not contact the vendor. I use them for Arduino or ESP32 or ATTINY85/13. I need to do more testing with them. I tried using them a few days ago and it didnt work. I need to play with them more to find out what I was doing wrong. These devices only output 5 volts so that could be the issue i am having. **Q: Will these work in a 28 VAC circuit ?** A: Maximum wattage is 100 mW so 28 Volts (AC or DC) under a bright light would probably destroy them. **Q: will these detect red laser light?** A: First off this product says it is manufactured by a company called “eboot”. They not an electronics parts manufacturer of any kind. You may want to contact them for the REAL manufacturer’s name and part number so that you can find the devices response to the laser. Your other option is to build a circuit and experiment with your laser perhaps using a LM339 voltage comparator etc ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works great with an ESP32 controller. *by T***O on March 22, 2024* I heat my well house in the winter with a 60 watt light bulb. I've been using an ESP32 in the well house to transmit the temperature to my network. I've just added this photoresistor to monitor the status of the light bulb. If the light should be on and the photo resistor doesn't detect the light, it will send me a text message. ### ⭐⭐⭐⭐⭐ Great Price. *by A***R on April 21, 2026* GOOD QUALITY. ### ⭐⭐⭐⭐⭐ Work Great! *by S***N on August 9, 2018* They work great. I messed the first one up when my soldering iron was too hot, but I learned my lesson and lowered the temperature on the second one. Good that this is a big bag, so I can mess up 29 more times! They work great on the breadboard too. For my application with Arduino Nano, each 22K resistor added between 80-100 points to the analog input signal (1023 max). So I had to add at least 6 resistors, to get a 1.0 in the digital port. I will add a 250K variable resistor (potentiometer) to my board next time to make adjustments easier. ## Frequently Bought Together - EBOOT 30 Pieces Photoresistor Photo Light Sensitive Resistor Light Dependent Resistor 5 mm (5539) - HiLetgo 10pcs 5V 650nm 5mW Red Dot Laser Head Red Laser Diode Laser Tube with Leads Head Outer Diameter 6mm - ELEGOO 120pcs Multicolored Dupont Wire 40pin Male to Female, 40pin Male to Male, 40pin Female to Female Breadboard Jumper Ribbon Cables Kit Compatible with Arduino Projects --- ## 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/41099661-30-pieces-photoresistor-photo-light-sensitive-resistor-light-dependent-resistor](https://www.desertcart.tn/products/41099661-30-pieces-photoresistor-photo-light-sensitive-resistor-light-dependent-resistor) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-08*