--- product_id: 78678668 title: "BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way" brand: "blackt electrotech" price: "178.26 DT" currency: TND in_stock: true reviews_count: 8 category: "Blackt Electrotech" url: https://www.desertcart.tn/products/78678668-bt31p2-white-water-proof-230volt-auto-day-night-on-off store_origin: TN region: Tunisia --- # 230V AC, 6A rated current Auto day/night light sensing Quick & durable installation BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way **Brand:** blackt electrotech **Price:** 178.26 DT **Availability:** ✅ In Stock ## Summary > 🌗 Light smarter, live brighter — never miss a moment in the dark! ## Quick Answers - **What is this?** BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way by blackt electrotech - **How much does it cost?** 178.26 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/78678668-bt31p2-white-water-proof-230volt-auto-day-night-on-off) ## Best For - blackt electrotech enthusiasts ## Why This Product - Trusted blackt electrotech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug-and-Play Setup:** Intuitive wiring and included mounting hardware get you up and running in minutes—no electrician needed. - • **Effortless Energy Savings:** Automatically switches lights on/off based on ambient light, slashing your electricity bills without lifting a finger. - • **Trusted Quality & Support:** Backed by a 12-month warranty and expert technical service, so you’re never left in the dark. - • **Robust & Weatherproof Design:** Built to withstand rain and sun, ensuring reliable outdoor performance year-round. - • **Universal Lighting Compatibility:** Seamlessly controls garden lights, street lamps, incandescent and LED bulbs—your all-in-one smart lighting solution. ## Overview The Blackt Electrotech BT31P2 is a waterproof, 230V AC photocell sensor switch that automatically controls lighting based on ambient light levels. Rated for 6 amps and compatible with various lamp types, it offers easy installation and durable outdoor performance. Ideal for energy-conscious professionals seeking hassle-free, smart lighting automation backed by a 12-month warranty. ## Description Product Description About Blackt Electrotech In introducing a BlackT Electrotech which is based on planning and dedication of skilled persons as concern with applications of Embedded System through modern conceptual products like Remote Switching System, Motion Sensor, Timer, etc. Our mission is to reach Blackt’s product to wide range of customers. We work for you and you’re our boss. And Technology is a Features we will show you the Benefits. We shall continue it for many blessing up coming years. We are provide technical service & Smart home automation systems after selling product/service. The quality of the range is periodically checked by team of quality inspectors. our entire range of products is packed in quality approved packaging material such as corrugated and boxes that keep it completely safe from internal and external hazard. Blackt Electrotech Water Proof 230Volt, LdR Sensor Switch For Lighting Blackt Electrotech day/night photocell switch is a new energy saving device which can turn on or turn off light automatically according to ambient-light. It can control the load while working at night and can be used to load light garden lights and street lights. Use Blackt Electrotech photocell switch to operate in the day/night mode. Can be used with street light, garden lights, incandescent lamp, led lights and all other kinds of lamps. Automatic Sensor Light Control Switch/ It can use Street Light, Garden Lights, Incandescent lamp, LED lights. Blackt Electrotech Water Proof 230Volt Auto Day/Night On And Off Photocell, LdR Sensor Switch For Lighting LdR Sensor Switch Features Operating volt: ac 220-250v 50hz-60hz. Rated current:6 amp Ambient light: < 5-15 lux Working temp: -20~+40 degc Working humidity: < 93% rh Package Includes 5 Pic x Photocell Module 5 Pic x Installation Manual 10 x Mounting Screw 5 pic x Mounting Plate Bill Auto Day/night On & Off Photocell Working As shown in the above diagram out of three wire's Red : Load, Blue : Neutral & Brown : Phase. Connect Red & Blue to Load Application where using (i.e. Lighting) & Brown and Blue to 230 VAC input supply. Now it is ready to operate Day/Night mode. For testing keep torch over to the Photocell load will turn ON. Review: A must required device - Have been using for more than a year. No complaints. Easy installation. Very useful as it saves lots of electricity as we tend to switch off the lights. Very Good quality as I have installed outdoors in rain and sun. Review: Good and extremely sensitive - Product quality is good, easy to install and configure, but it’s extremely sensitive to even the light from the bulb, it just keeps automatically switching on and off, I had to wrap two sides with cardboard so that it stays on after dark, a dial to adjust the sensitivity could have been given to adjust the levels of sensitivity. ## Features - 🌞 [Automatic Light Control]: Utilizes a light sensor to automatically turn loads on/off based on ambient light conditions, perfect for night-time operations. - 💡 [Versatile Applications]: Ideal for controlling garden lights, streetlights, incandescent lamps, and LED lamps, providing energy-efficient lighting solutions. - 🛠️ [Easy Installation]: Crafted from high-quality materials for durability and simplicity, ensuring quick setup and reliable operation. - ⚡ [High Performance]: Operates on AC 220-250V, supports a rated current of 6A, and a switching frequency of 50/60Hz for consistent performance. - 🛡️ [Warranty]: Backed by an 12-month warranty against manufacturing defects, ensuring peace of mind and lasting reliability need to return and replace. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B076SZ2ZJR | | Best Sellers Rank | #6,632 in Home Improvement ( See Top 100 in Home Improvement ) #40 in Switches & Dimmers | | Brand | Blackt Electrotech | | Brand Name | Blackt Electrotech | | Circuit Type | 1-way | | Colour | White | | Connectivity Protocol | Wi-Fi | | Connector Type | Clamp | | Contact Material | Brass | | Contact Type | Normally Open | | Control Method | Sensor | | Controller Type | Push Button | | Country of Origin | India | | Current Rating | 6 Amps | | Customer Reviews | 4.2 out of 5 stars 1,456 Reviews | | Included Components | FALSE | | Item Dimensions | 10.2 x 20.3 x 15.2 Centimeters | | Item Weight | 0.01 Ounces | | Manufacturer | Blackt Electrotech | | Material Type | Plastic | | Model Number | BT-61C112 | | Mounting Type | Wall Mount | | Number of Positions | 2 | | Operating Voltage | 230 Volts | | Operation Mode | ON-OFF | | Switch Type | Relay | | Terminal | Solder | | Unit Count | 1.00 Count | | Wattage | 1000 Watts | ## Product Details - **Operation Mode:** ON-OFF - **Current Rating:** 6 Amps - **Operating Voltage:** 230 Volts - **Contact Type:** Normally Open - **Connector Type:** Clamp ## Images ![BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way - Image 1](https://m.media-amazon.com/images/I/61gb7TCKBsL.jpg) ![BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way - Image 2](https://m.media-amazon.com/images/I/71FPf6h3Y-L.jpg) ![BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way - Image 3](https://m.media-amazon.com/images/I/71GQIS2GoVL.jpg) ![BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way - Image 4](https://m.media-amazon.com/images/I/61BCY8G0Q2L.jpg) ![BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack), Relay, 1_way - Image 5](https://m.media-amazon.com/images/I/81j+ebikc4L.jpg) ## Questions & Answers **Q: What is sensing area it can cover** A: It can be fitted on wall or ceiling as far as it get natural light to switch off **Q: Can we use one photocell with several bulbs** A: yes you can, by connecting the bulbs on the output in parallel **Q: What is the wattage** A: 250 WATT **Q: How many light will start at a time** A: The Manufacturer claims it can switch upto 6 amp Load. Even if we use upto 5 amps, that means u can operate a load upto 1200 Watts. That means upto 10 Lamps of 100 Watt each ## Customer Reviews ### ⭐⭐⭐⭐⭐ A must required device *by P***P on 12 September 2025* Have been using for more than a year. No complaints. Easy installation. Very useful as it saves lots of electricity as we tend to switch off the lights. Very Good quality as I have installed outdoors in rain and sun. ### ⭐⭐⭐⭐ Good and extremely sensitive *by P***P on 7 November 2023* Product quality is good, easy to install and configure, but it’s extremely sensitive to even the light from the bulb, it just keeps automatically switching on and off, I had to wrap two sides with cardboard so that it stays on after dark, a dial to adjust the sensitivity could have been given to adjust the levels of sensitivity. ### ⭐⭐⭐⭐⭐ Excellent quality product, value for money. *by P***R on 16 August 2021* Have used this sensor in my parking lot so that it turns on the common lighting system when it gets dark and automatically turns off when it gets daylight. Much to my astonishment the packing was neat and clean and 5 such devices for less than 1000 is a real value for money. Did go through the circuit and the components used and I am much impressd. Not sure of its durability if I am going to use it for exterior light as the Sun is pretty hard on plastic objects in Chennai. But sure the product will last long if used in non sunny areas. Just the manual could have been more detailed for a non technical person... net net a very excellent product. ## Frequently Bought Together - Blackt Electrotech BT31P2 White Water Proof 230Volt Auto Day/Night on and Off Photocell, Ldr Sensor Switch for Lighting (5 Pic Pack) - Blackt Electrotech PIR Sensor Light and Energy Saving Motion Detector Wall Mounted Switch (White) - Quick Sense (Qs-302): Day/Nights Auto on and off Plastic Photocell Ldr Switch 220V for Home Automation, White --- ## 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/78678668-bt31p2-white-water-proof-230volt-auto-day-night-on-off](https://www.desertcart.tn/products/78678668-bt31p2-white-water-proof-230volt-auto-day-night-on-off) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-30*