CHI-SWEAR is the technical and international sales portal of LONG-JOIN, a manufacturer specializing in photocells and smart outdoor lighting controls. The LONG-JOIN brand dates to 1996, and Shanghai Long-Join Intelligent Technology Inc. was established in 2003 to design, develop, and manufacture light-control switching devices. The company serves business customers worldwide, offering product matching, specification reviews, sampling, customization, and quotations for qualified projects.

Its product range includes wire-in and screw-in photocells, twist-lock photocontrols, NEMA receptacles and accessories, covers, bases, shorting and open-circuit caps, Zhaga Book 18 components and sockets, and smart lighting controls. LONG-JOIN also provides OEM/ODM and customized solutions, including NEMA and Zhaga series products and controller assemblies for outdoor lighting applications.

Manufacturing is supported by automated and semi-automated equipment, manual processing, and an ISO 9001:2015 quality management system. Documentation for standards and certifications, including UL, cUL, CE, CB, and Zhaga, may be available for applicable models; customers are advised to confirm requirements for specific products. CHI-SWEAR connects international buyers with LONG-JOIN’s products, technical expertise, and manufacturing capabilities.