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Zhejiang Leadtop Electrical Co., Ltd. is a professional manufacturer specializing in the R&D, production, and sales of photocontrols over decades, with a focus on NEMA Series and Zhaga Series products.
Initially, we primarily collaborated with clients to design and manufacture products specifically for tender projects.
Over time, we’ve grown into a trusted supplier, offering tailored solutions to meet the diverse needs of renowned international lighting brands, wholesalers, and retailers.
We are committed to delivering the right products for a broad range of global markets.
NEMA Series Products
Our NEMA photocontrol portfolio encompasses NEMA Twist-Lock photocontrols, NEMA 3/5/7P smart dimming sockets, NEMA bases and covers, and shorting caps. Designed to seamlessly integrate with IoT systems, smart street lighting, and smart city infrastructure, these products enhance both convenience and efficiency, empowering cities to create smarter, more sustainable urban environments.
1. Twist-lock photocontrol
We design and provide three main categories of Twist-Lock photocontrols based on our customers’ specific application needs: Thermal type, Electrical type, and Electromagnetic type. These photocontrols are available in various voltage ranges, including 12 & 24 VDC, 105-305 VAC, and 480 VAC (105-528 VAC applicable voltage)
1.1 Thermal Type photocell
The thermal photocell features high-temperature and high-voltage protection, effectively preventing damage from instantaneous current surges during the startup of high-voltage lamps. This makes it especially suitable for traditional lamps like high-pressure sodium lights, significantly extending their lifespan and making it an ideal choice for complex lighting environments. With its excellent stability and durability, the thermal photocell reduces wear on lamps while managing light changes, ensuring long-term stable operation of the system.
1.2 Electrical type photocell
The electrical photocell responds quickly, making it ideal for street and public area lighting. It supports a variety of voltage specifications (such as 12V, 24V, 120V, 277V and 480V), enhancing compatibility and flexibility with different lighting systems. Additionally, many electrical photocells come with built-in overload protection, which automatically disconnects power in case of excessive current, safeguarding both the fixtures and the photocell to ensure safe system operation. Not only does it save energy, but it can also connect with smart lighting systems to meet the demands of modern smart cities.
2. NEMA Receptacle
Our NEMA sockets are primarily categorized into ANSI C136.10 & ANSI C136.41 standard configurations of 3P, 5P, and 7P sockets. Additionally, we offer customized high-waterproof series sockets suitable for various street lighting projects. These sockets are designed to meet the needs of different environments and applications, ensuring reliable power connections and safe lighting control. Whether used in urban streets, commercial areas, or other outdoor lighting locations, our NEMA sockets provide stable performance, contributing to the development of intelligent lighting solutions.
2.1 NEMA 3P Socket
Lead Top NEMA/ANSI C136.10 3P receptacle is typically the most cost-effective option. To better meet customer needs, we offer various design solutions, including options for fixtures with pre-drilled holes and sockets without holes. Additionally, we support customization of sockets based on the specific requirements of our customers, ensuring that our products can perfectly fit a variety of application scenarios.
LT625S Sapce-saving ANSI C136.10 3Pin socket
2.2 NEMA 5P/7P Socket
Zhejiang Lead Top NEMA dimming receptacles are ANSI C136 compliant. The receptacle connector is integrated into the light fixture and receives a base that serves as the foundation of the lighting control. The mated receptacle and base provide a sealed interconnect solution between the luminaire and the control module. This product series offers UV-resistant and high-impact-rated covers as an accessory to the base, effectively sealing and protecting the enclosed lighting controls, maintaining street light dimming and other functionalities even under harsh conditions.
3. NEMA Accessories
All LEAD TOP twist-lock photocell controllers consist of a NEMA LT-100B base, a PCB electronic circuit, and a cover with either single or double-layer shells. These bases provide a universal 480V power and signal interface between the wireless smart controller base and the luminaire receptacle in LED outdoor roadway, street, and area lighting applications. The base has a diameter of 76.5±0.3 mm, includes 3-pin twist-lock terminals, spring leaf signal contacts (C136.41 versions only), and is equipped with a sealing gasket.
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Zhaga Series Photocontrol
Wire-in photocell
Based on our years of in-depth understanding and interaction with customers in various markets, we have designed a variety of wired photocontrols to meet the needs of different markets:
1. For different installation scenarios, we offer various shapes of wired photocontrols, such as the LT210A series, suitable for wall-mounted installations, the LT310B series for garden lights, and the LT310A-ST, designed for fixtures with small pre-drilled mounting holes.
2. In terms of product types, they are divided into two main categories: thermal type and electronic type.
3. According to voltage requirements, the products cover a range of 12-48VDC and 120-277V & 277-528VAC, making them suitable for various application scenarios.
These products are not only designed for wholesalers but are also suitable for e-commerce platforms, such as Amazon and eBay.
Bulb-holder controler
Based on different market and customer needs, we have carefully prepared E12, E26, and E27 bulb-type photocontrols, as well as spring-press and twist-lock contact photocontrols. The product series includes six models, from LT510 to LT560, all designed for easy installation. Even without a user manual, anyone can quickly install and use these products, making them ideal for home and personal use. Additionally, they offer an excellent option for e-commerce sellers targeting the consumer market.
Shorting Cap+ANSI C136.41 7P Socket
IP66 Waterproof testing video
Shorting Cap+ANSI C136.41 7P Socket
1.In what scenarios is a Shorting Cap used?
Temporary Connection: During installation or maintenance, the shorting cap can be used for temporary circuit connections to ensure a continuous power supply, facilitating other work.
Circuit Testing: During the debugging phase, the shorting cap can be used to test the circuit to confirm whether the luminaire or controller is functioning properly.
2. How do you decide between 3-wire, 5-wire, and 7-wire options?
3-Wire Socket:
Applicable Scenarios: Commonly used in non-smart street lighting projects, mainly for basic switch control, such as automatic lighting at dusk and dawn.
Advantages: More affordable, suitable for simple lighting needs.
5-Wire Socket:
Applicable Scenarios: Suitable for systems that require dimming or other control functions. It can be used in conjunction with smart controllers for more flexible functionality.
Advantages: Provides additional signal wires to support more complex control needs.
Note: The 5-wire socket only supports 0-10V dimming or DALI dimming. If you wish to change the dimming method in the future, you will need to replace the socket.
7-Wire Socket:
Applicable Scenarios: Suitable for smart and dimming sensors, equipped with 4 signal wires. Whenever you want to use 0-10V dimming or DALI dimming, the 7-wire socket can meet your needs without requiring replacement.
Advantages: Offers higher flexibility, able to support multiple dimming options simultaneously.
Selection Suggestions:
Basic Needs: If only simple switch control is needed, a 3-wire socket may be sufficient.
Smart Control: If the system requires dimming or other smart functions, a 5-wire or 7-wire socket would be more appropriate.
Budget: While considering functionality, evaluate your budget to choose the most suitable option.
Photocell+NEMA 7P Socket+Bracket+Cable
2. What is theIP rating that can be achieved when a socket is paired with a photocontrol?
When paired with our photocontrols, our standard products can achieve a minimum waterproof rating of IP66. However, after implementing special waterproof treatments for the photocontrols and sockets, our photocontrol kits can reach waterproof ratings of up to IP67 and even IP68.
Photocell+NEMA 7P Socket+Bracket+Cable
1.In what scenarios are socket brackets used?
The bracketed socket is commonly used for the installation of various lighting and electrical devices, providing stable support and convenient connections. Here are some common usage scenarios:
Outdoor Lighting:
Bracketed sockets are widely used in outdoor lighting fixtures, such as streetlights, courtyard lights, and landscape lighting. When the fixtures do not have pre-drilled NEMA socket holes, the bracket can secure the socket in the appropriate position, ensuring the stability and safety of the fixtures while preventing damage from weather conditions such as rain and wind.
Home Applications: In residential environments, bracketed sockets are often fixed to walls or railings for easy connection of bulbs and fixtures. Particularly in locations like porches, using NEMA photocontrol sockets, the bracket provides sturdy support to ensure the safe installation of the socket.
Note: When using bracketed sockets, it is essential to enhance and specially treat their waterproof performance to ensure safety and stability in humid or harsh weather conditions. Measures can include adding waterproof sealant at the base of the socket for effective sealing, wrapping exposed cable lines for added protection, and using cable glands at the connections between the socket and wires to prevent moisture ingress. These measures can significantly reduce the risk of electric leakage and short circuits, ensuring the reliability of the equipment and the safety of users.
NEMA BASE+COVER+7P Receptacle
1. What is the significance of the NEMA Base & Cover?
The cover base serves as a carrier for the controller, and the NEMA base and cover provide reliable interfaces and protection for various lighting and electrical devices, widely used in urban infrastructure and industrial applications. IoT and smart city solution providers utilize these bases to integrate sensors and controllers, enabling data collection and intelligent control to enhance energy efficiency and operational efficiency. This integrated solution not only optimizes the performance of lighting systems but also significantly enhances the intelligence level of urban infrastructure.
Zhaga Socket+Zhaga sensor(BASE & Cover)
1. Overview of the Future Prospects of Zhaga Photocontrols.
The future prospects for Zhaga photocontrols appear very promising, largely due to the rapid advancement of smart lighting technologies and the increasing emphasis on energy efficiency and sustainability in urban development.
Standardization and Interoperability: The Zhaga Alliance promotes standardized interfaces for lighting components, facilitating interoperability among different manufacturers. Standardization is crucial for creating flexible and adaptable lighting systems that can seamlessly integrate with various sensors and control technologies, thereby fostering a more interconnected smart lighting ecosystem.
Integration with Smart Cities and IoT: As cities increasingly adopt smart technologies to enhance the quality of urban life, Zhaga photocontrols will play a key role in this transition. Their compatibility with IoT devices enables advanced functionalities such as real-time monitoring, adaptive lighting, and data collection. This not only improves energy management but also enhances public safety and user experience.
Energy Efficiency and Sustainability: With the global push to reduce energy consumption and carbon emissions, Zhaga photocontrols significantly contribute to sustainable development by optimizing lighting usage based on environmental conditions. By incorporating features like daylight harvesting and occupancy sensing, these devices help minimize energy waste and promote sustainable practices.
Zhaga Socket+Zhaga sensor(BASE & Cover)
Enhanced User Experience: The integration of Zhaga photocontrols with smart lighting systems allows for tailored lighting solutions that meet specific needs. This adaptability enhances the user experience in various settings, including public spaces, commercial buildings, and residential areas.
Market Growth and Applications: The increasing demand for smart lighting solutions, particularly in urban areas, indicates a broad market growth potential for Zhaga photocontrols. As municipalities and enterprises prioritize modernizing lighting infrastructure, the adoption of Zhaga-compliant products is expected to rise significantly.
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Yes, our products are sold worldwide. As for agents, it depends on the specific market.
LT124L, LT124, LT134
Specific issues require specific analysis
Yes, Zhejiang Leadtop supports customization, which includes options such as the color of the dome, logo, color box, outer box, specifications, and more
Please share with us your target market, and we will be happy to provide you with detailed information for your consideration.
Yes, we can provide samples, including pre-production confirmation samples and testing samples
Our products have been certified for ANSI C136.10, ANSI C136.41, UL, CE, CB, IP66, IK08, ISO 9001:2015, and more.
We currently don’t have a warehouse abroad, but our production cycle is very fast. Once you place an order, you won’t have to wait long.
For samples, it’s 3-5 days. For orders of 100-5000 units, the delivery time is around 15 days, and for 5001-10,000 units, the delivery time is 20 days.
For our standard products, there is no MOQ.
For our VIP customers, the payment method is a 30% deposit and 70% paid in full before shipment.
Our products are available with warranty periods of 3 years, 5 years, and 8 years etcs.
We accept T/T, credit cards, PayPal, and more.We accept T/T, credit cards, PayPal, and more.%MCEPASTEBIN%
Yes, our products are sold worldwide for decades.
Our employees are trained during production, and we have operating procedures posted. There is QC testing during production, and a full QC inspection after production.
We can apply for discounts based on the actual situation to establish a friendly and mutually beneficial relationship
Yes, if all materials are available, we can prioritize production for you in urgent situations
1. Developed and prepared three bidding options—high, medium, and basic configurations
Specifically for tender projects, aligning with the technical specifications required in the tender documents. For example:
Rated Voltage：105-305VAC
MOV: 475Joule/950Joule/1424Joule 20KA/10KV
IP66 & IP67
Zero-Crossing Detection
Surge Protection: 20KV/10KA
Insulation Resistance: >500MΩ
Will operated down to 80VAC
8 Years Warranty
Supports Cover color customization
2.Whole technical team is always on standby
Testing 0V standby voltage
Turn-on: 0s Delay
Turn On/Off Lux Adjustment and Testing - 9 Groups
3. Comprehensive testing equipment ensures quality assurance.
Waterproof testing video
105-528VAC Voltage range testing video
4.Certifications (ISO:9001:2015/ANSI C136.10/ANSI C136.41/UL/CE/CB/IP66/IK 08/ZHAGA BOOK18 and so on)
5. Sales team members have at least 5 years of experience and are knowledgeable about market trends in various countries as well as the Chinese market.
6. The product is cost-effective and we offer free samples for testing.
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