FAQs

Yes , We export our products to many area. Mainly exported to North America, South America, Europe and Southeast Asia, and has a high market share in North America, South America, Europe and Southeast Asia for many years. I think you can consult our consultant about your local hot selling models .

Yes, our products have ANSI, UL, CE certificates,etc . And we also support sample testing. We have already helped our partners bid winning .

We design various enclosures for different needs , also some unconventional models what other plants do not produce. If we do not design for that , yes ,we can customize them for you .

We have taken many measures in how to fight the outdoor weather. For example , we use the PC ,PBT weather resistant material of external protection for our products,thicker and solider design can also greatly extend the lifespan when them be in outdoor .Also , It is very vital to have good waterproof performance for outdoor use , so our products have waterproof reinforced models .

Yes , we have been focusing on the field of outdoor light control for 20 years. During this period, we have designed and sold up to 50 models of light controllers and accessories for civil and industrial use. So we trust we can meet the diversified needs of your customers.

LONGJOIN is one of the few manufacturers in China that only specialize in outdoor light controllers. Therefore , we have putting our all energy into the field of outdoor light controller . And based on we focus on the exploration of the demand in this field . We have created the complete product category for the any partner who seeks a outdoor light control support. We trust any need for your outdoor light control systems can be better valued and met here.

NEMA interfaces can last for many years, often exceeding a decade. It depends on environmental conditions and maintenance practices.

Yes, many NEMA interfaces are designed to integrate with smart lighting technologies for enhanced control and automation.

Basic tools are sufficient for installing and maintaining NEMA interfaces. Specialized tools may be needed for specific tasks.

SPDs should be inspected regularly and replaced every 3 to 5 years. If the area has frequent electrical surges, you may need to replace it earlier.

Signs include visible damage such as brins or meted parts. You can also monitor the change in its performance. JL-250F (SPD module)

Surge protection rating indicates the amount of energy the device can absorb. A higher rating means better protection.

Use a multimeter to check for continuity, and verify voltage at Pin 1. Certify there are no unintended connections between the pins.

Use weatherproof enclosures rated for outdoor use (e.g., IP66 or IP67) and apply sealant around entry points to prevent moisture ingress.

Regularly inspect the wiring and connections for damage, wear, and secure fittings. It is ideally every few months, especially in harsh weather conditions.

Individual lighting control can be more energy-efficient due to automatic adjustments based on occupancy and natural light.

Centralized lighting control offers better scalability. It makes it easier to expand and upgrade across large networks.

Individual systems enhance safety with adaptive lighting for specific areas, while centralized systems provide general safety improvements city-wide.

Breathable membranes are materials that allow air to flow through them. These blocks dust and water. It also improves the performance, durability, and lifespan of the devices.

Breathable membranes improve airflow by removing the heat generated during their operation. This temperature regulation prevents overheating. It protects from any damage to the components and makes sure they operate safely at normal temperatures.

The aesthetic appeal of light controllers is important because they need to look good with modern home designs. Breathable membranes help it by maintaining its visual appeal and still provide the essential technical benefits

Yes, the Zhaga standard interface can be integrated with existing smart lighting systems. Its compatibility with various brands and models ensures it can work seamlessly with current installations.

The Zhaga interface is designed to withstand various outdoor conditions, including extreme temperatures, humidity, and exposure to rain or snow.

The Zhaga interface enables precise control and programming of lighting systems, allowing for optimized energy usage. This can include dimming lights during low-traffic periods or using sensors to adjust lighting based on real-time conditions.

The primary function of the Zhaga series light controllers is to intelligently manage outdoor lighting by using photo sensors and microwave sensors. These controllers adjust light brightness based on ambient light conditions and the presence of moving objects.

The controllers use photo sensors to detect ambient light levels. They automatically adjust the brightness of the lights, turning them on when it gets dark and off when it becomes brighter,

Yes, the Zhaga series controllers have a flexible installation design. It allows them to be mounted at any position around the lamp at 360 degrees. This flexibility meets the needs of various application areas.

Aligning Zhaga products provides compatibility, interoperability, and future-proofing of lighting systems. It aids in meeting global standards while catering to local needs.

The phased implementation allows for gradual upgrades. It reduces disruption and optimizes resource allocation for a smoother shift to Zhaga standards.

Adapters facilitate easy alignment of Zhaga products with existing infrastructure. There is no need for costly system overhauls and simplifying deployment.

Zero-cross technology detects the point when AC voltage crosses zero during a power cycle. It allows lights to switch on and off with minimal electrical interference.

By switching at zero voltage, it reduces current spikes. This minimizes stress on components and prevents damage. It also extends the lifespan of lighting equipment.

The combination improves switching efficiency and reduces maintenance costs. It also supports advanced features like dimming and remote control. This makes street lights more energy-efficient and reliable.

Intelligent light controllers adjust street light brightness based on ambient light levels. They ensure adequate illumination at night while saving energy during the day.

Longjoin’s intelligent controllers feature high sensitivity, fast response times, and remote monitoring capabilities. These features allow for better energy savings and urban lighting management.

Improving the power factor reduces electrical energy waste. This leads to lower energy costs and enhances the overall efficiency of the lighting system.

Typical HS code is 8536.50.00.90 for photocells.

We offer a 3 to 5-year warranty depending on the model.

We provide free replacement or refund based on test reports and photos.

Contact our support team with order details and we will assist immediately.

Yes, spare sensors, covers, and components are available.

Generally no, but we provide online guidance and support.

Yes, extended warranty is available with additional charges.

Yes, our warranty covers all global buyers regardless of country.

A valid claim includes product photo, issue description, and purchase proof.

Yes, return policy applies within 15 days for samples.

Yes, free samples are available, freight collected.

Yes, we document all feedback to enhance future production.

Yes, datasheets and installation guides are available for all models.

Yes, we can share IES files if available.

Yes, 2D/3D CAD files can be shared upon request.

We offer UL-certified quality, customization, factory-direct pricing, and smart solutions.

Yes, we support these protocols for smart control.

CdS is cost-effective, IR offers higher sensitivity and stability.

Dimming is based on a preset time algorithm triggered after dusk.

Yes, we are active on LinkedIn, Facebook, YouTube.

Yes, smart models with wireless features support OTA updates.

Yes, we provide access to cloud-based lighting management.

Each model has a unique label and QR code for version tracking.

T/T 30% deposit, 70% before shipment. L/C available for large orders.

Yes, subject to evaluation after multiple transactions.

We attend Hong Kong Lighting Fair, Light+Building Frankfurt, etc.

Yes, we welcome exclusive distributors in different countries.

MOQ is usually 500–1000pcs depending on the model.

Yes, trial orders are welcome for testing and evaluation.

Yes, we use eco-friendly and RoHS-compliant materials.

Yes, we support Trade Assurance on Alibaba.

Yes, PI will be issued upon order confirmation.

Yes, mixed orders are acceptable.

New models are released every 6-12 months.

Yes, we can discuss market exclusivity upon annual volume commitment.

A photocell is a sensor that turns outdoor lights on/off automatically based on sunlight.

North America (50%), Europe (20%), Asia & South America (30%).

We produce over 8 million photocells annually.

Yes, including Philips, Cree, TORK, and more.

Yes, free samples are available, freight collected.