---
product_id: 404523311
title: "Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44)"
brand: "blackt electrotech"
price: "¥4194"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/404523311-blackt-electrotech-bt31p4-photocell-day-night-sensor-for-street-light
store_origin: JP
region: Japan
---

# Wide 220-250V compatibility Precision day-night sensor 5-15 lux ambient light detection Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44)

**Brand:** blackt electrotech
**Price:** ¥4194
**Availability:** ✅ In Stock

## Summary

> 🌙 Light up your nights, effortlessly.

## Quick Answers

- **What is this?** Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) by blackt electrotech
- **How much does it cost?** ¥4194 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/404523311-blackt-electrotech-bt31p4-photocell-day-night-sensor-for-street-light)

## 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

- • **Effortless Automation:** Automatically powers your street or garden lights exactly when needed—no manual switches required.
- • **Compact & Sleek Design:** Minimalist gray ABS casing blends discreetly with any outdoor setup, wall-mount ready for easy installation.
- • **Smart Light Sensitivity:** Activates lights only in low ambient light (5-15 lux), optimizing energy use and extending bulb life.
- • **Universal Voltage Range:** Seamlessly fits standard AC 220-250V power supplies for consistent, reliable operation.
- • **Weather-Resistant Durability:** IP44 rating ensures dependable performance rain or shine, perfect for outdoor environments.

## Overview

The Blackt Electrotech BT31P4 is a robust photocell day-night sensor designed for street and garden lighting. Featuring a wide operating voltage range (220-250V AC) and precise ambient light detection between 5-15 lux, it ensures automatic, energy-efficient lighting control. Its IP44 rating guarantees weather resistance, while the compact ABS design allows easy wall mounting for seamless outdoor integration.

## Description

Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44)

## Features

- Reliable day-night sensor: The Blackt Electrotech BT31P4 features a high-quality photocell day-night sensor, ensuring automatic activation and deactivation of street lights and garden lights based on ambient lighting conditions.
- Wide operating voltage range: With an operating voltage range of AC 220-250v and a frequency of 50hz-60hz, the Blackt Electrotech BT31P4 is compatible with standard power supplies, providing reliable and consistent performance.
- Optimal ambient light detection: The BT31P4 is designed to detect ambient light levels between 5-15 lux, ensuring accurate activation and deactivation of lights based on the surrounding lighting conditions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Blackt Electrotech |
| Part number | BT31P14 |
| Item Weight | 65 g |
| Product Dimensions | 9 x 9 x 5 cm; 65 g |
| Item model number | BT31P4 |
| Size | 3 x 3 |
| Color | Gray |
| Style | Rating IP44 |
| Material | ABS |
| Shape | Rectangular |
| Power source type | AC |
| Voltage | 230 Volts (AC) |
| Wattage | 250 watts |
| Item Package Quantity | 1 |
| Plug Profile | Wall Mount |
| Specification met | ce |
| Specific uses | general purpose |
| Included components | Screw |
| Batteries Included? | No |
| Batteries Required? | No |
| tech_spec_battery_description_toys | battery not included |

## Product Details

- **Brand:** Blackt Electrotech
- **Colour:** Gray
- **Power source:** AC
- **Item weight:** 65 Grams
- **Mounting type:** Wall Mount

## Images

![Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) - Image 1](https://m.media-amazon.com/images/I/711fQ2ohUoL.jpg)
![Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) - Image 2](https://m.media-amazon.com/images/I/71FPf6h3Y-L.jpg)
![Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) - Image 3](https://m.media-amazon.com/images/I/81j+ebikc4L.jpg)
![Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) - Image 4](https://m.media-amazon.com/images/I/61BCY8G0Q2L.jpg)
![Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44) - Image 5](https://m.media-amazon.com/images/I/71GQIS2GoVL.jpg)

## Available Options

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

## Frequently Bought Together

- Blackt Electrotech (BT31P4) Photocell day night sensor for street light garden light (Rating IP44)
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**Shop now:** [https://www.desertcart.jp/products/404523311-blackt-electrotech-bt31p4-photocell-day-night-sensor-for-street-light](https://www.desertcart.jp/products/404523311-blackt-electrotech-bt31p4-photocell-day-night-sensor-for-street-light)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-26*