How to Effectively Choose Outdoor Road Lighting Controls When Requirements Are Unclear: A Professional Guide by Longjoin Photocell

Outline Choosing the right outdoor lighting controller can be tricky, especially when customer requirements are vague or undefined. Without clear specs, how do you decide what model to recommend? Getting it wrong can lead to poor performance or early failure. But getting it right means safer roads, better energy efficiency, and fewer maintenance calls. Shanghai […]

Zero-Cross Control Technology in Photocells: Precision Dimming Meets Reflection Compensation

Outline In today’s smart lighting systems, precision matters more than ever. Reliability is equally important. Street lights must adjust to changing conditions. They also need to reduce energy waste and light pollution. Zero-cross control and reflection compensation make this possible. These technologies boost photosensor performance. They improve dimming accuracy and stop false triggers from reflected light. […]

Understanding the Working Humidity of Photocells: IP54 Rating and Environmental Considerations

Outline Photosensors are essential in outdoor lighting systems. From minimizing light pollution to power and cost savings, and all in between, their importance is critical. But have you ever thought about how humidity affects them? Working humidity is often ignored as a factor. If uncontrolled, it can reduce sensor accuracy or cause failure. That’s why […]

Understanding JL-206 Reverse Proportional Illuminance: Unique Applications and Benefits

Outline Why would a light sensor turn lights on when it’s brighter and off when it’s darker? That’s exactly what the JL-206 does. Unlike traditional photosensors, it follows a reverse proportional illuminance pattern. This design unlocks specialized benefits in environments where lighting consistency is critical. From tunnels to parking garages and display setups, the JL-206 brings […]

LONGJOIN Guangzhou International Lighting Exhibition (GILE) 2025 Participation Summary Report

Dear Valued Customers and Partners, The 30th Guangzhou International Lighting Exhibition (GILE) concluded successfully on June 12, 2025. We sincerely appreciate your trust and support, which made LONGJOIN’s participation in this event a great success. Below is a summary of our exhibition highlights and achievements: 1. Exhibition Overview LONGJOIN showcased its NEMA & Zhaga lighting […]

How Can Cities Save Millions? Smart Photocell Tech Revolution Revealed | 20-Year Data Analysis

Outline Cities are spending more than they need to on street lighting. Traditional lighting controls fail too often, causing costly maintenance and energy waste. Over time, those costs add up—millions lost annually. But what if there was a better way? Smart photo controllers are changing the game. They use fast, adaptive tech to cut down energy […]

Product color issue – For the Zhaga book 18 base, apart from black, what other colors are available?

Outline Looking to move beyond black for your Zhaga Book 18 base? You’re not alone. As smart lighting expands, color customization is becoming a real need for lighting designers. Whether it’s for aesthetic harmony or brand distinction, the demand for more color options is growing. But not all suppliers offer the same quality or flexibility. […]

Illuminating the Future: The Genesis and Mission of Long-Join’s Photocell Controllers

Outline Over twenty years ago, a flickering streetlight sparked a question. Why do lights waste energy by glowing brightly during empty late-night streets, but fail to respond on overcast days? That simple frustration exposed a much bigger problem—outdated light sensor technology. It led to the birth of Long-Join Electronics. The goal was clear: make lighting smarter, […]

Zhaga Book-18 Interface Standard: The Path to Standardization in Intelligent Lighting Systems and the Application of Photocontrollers

Outline As cities become smarter, lighting systems are evolving too. Three key trends that intelligent street lighting now depends on are The Zhaga Book-18 Interface Standard plays a crucial role in this transformation. It provides a unified interface for connecting sensors, controllers, and luminaires. Photocontrol receptacles, essential for light automation, rely heavily on this standard for communication […]

JL-207 Light Controller: The Future Choice for Intelligent Lighting in South America

Outline Smart lighting is reshaping the way cities function. From reducing energy waste to enabling remote control, smart light sensors-led lighting has become essential. As South American cities grow, the demand for efficient and smart lighting solutions is rising. The JL-207 light controller steps in as a powerful answer to this need. Equipped with global […]