Price: ₹600 - ₹299.00
(as of Jul 20, 2025 00:37:53 UTC – Details)
Specifications 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 Rating : IP65
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.
Suitable for various environments: With an IP65 rating, the Blackt Electrotech BT31P4 offers excellent protection against dust and water ingress, making it suitable for outdoor applications such as street lights and garden lights.
Durable and weather-resistant: Designed to withstand harsh weather conditions, the BT31P4 has a working temperature range of -20~+40 degc and a working humidity level below 93% RH, ensuring reliable operation in different climates.
Customers say
Customers find the light sensor works well, is easy to install, and saves at least 30% power. They appreciate its functionality for outdoor lighting needs, with one customer noting it’s bright enough for night visibility. The auto-on/off feature operates well at sunrise and sunset, and customers consider it good value for money. However, the sensor’s sensitivity receives mixed feedback, with several customers noting it’s not sensitive to LED street lights, and some reporting it stops working properly after one month of use.
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