A customer in Turkey reports that units inspected after approximately four years of field operation showed no issues, including water ingress or moisture buildup. The customer uses LONG-JOIN housing and base components identified by CHI-SWEAR as JL-741J-3 and JL-742J-3 in its lighting-controller development.
For Turkish luminaire manufacturers, controller developers and retrofit integrators, this feedback offers a practical reference when selecting components for outdoor lighting projects. It is customer-reported experience, not an independent lifetime test or a guarantee for every installation.
What the Turkish customer reported
“We are very satisfied with your products.”
“We are very pleased with their long-term performance.”
In the supplied written feedback, the customer says its R&D phase is complete and its purchasing department places orders as new projects arrive. It reports inspecting units retrieved from the field after approximately four years of operation and finding no issues, including signs of water ingress or moisture buildup. The number of inspected units and their individual installation conditions were not specified.

JL-741J-3 and JL-742J-3 housings and bases for controller development
CHI-SWEAR supplies LONG-JOIN controller housing and base components to help customers develop their own lighting-control products. The components in this customer application are identified as JL-741J-3 and JL-742J-3. Exact cover geometry, board clearance, seals, connector configuration and drawings should be confirmed for the selected order code.
The photographs show the customer’s assembled controllers, exposed electronic assemblies and a luminaire on a workbench. Our supplied scope in this case is the housing and base components. The photographs do not establish that CHI-SWEAR designed or manufactured the customer’s electronics, firmware, radio module or energy management platform.

Supporting Zhaga-D4i and EMS lighting projects in Turkey
Developing a networked street-lighting controller requires more than choosing an enclosure. The mechanical interface, driver supply, control communication, radio design and energy management system must work together. CHI-SWEAR welcomes component-selection and customization inquiries from Turkish lighting OEMs, control-device developers and project integrators.
New lighting-controller design
Share the PCB dimensions, component heights, antenna location, sensing requirements and mating receptacle. These details help assess housing clearance, connector fit and the sealing arrangement before moving to samples.
Luminaire control upgrades and retrofit projects
For an existing luminaire, provide its mounting arrangement, driver model and available control interface. A suitable upgrade path depends on the installed electrical design and intended controller. Changing the housing or adding a connector alone does not turn an existing luminaire into a Zhaga-D4i-certified system.
Energy management system integration
For EMS projects, describe how the controller should exchange status, operating schedules and energy data with the selected platform. Confirm driver data availability, communication protocol, network coverage and commissioning responsibilities with the system integrator. Energy savings must be evaluated against the actual baseline, dimming schedule and measured operation; no savings percentage is claimed for this customer example.

What does the feedback demonstrate?
- Customer experience: satisfaction and no water or moisture issues reported in inspected units after approximately four years.
- Supplied components: JL-741J-3 and JL-742J-3 housing/base components identified for this customer application.
- Project-specific checks: dimensions, installed sealing, thermal behavior, driver compatibility and antenna performance.
- Certification scope: confirm the exact component, controller and luminaire listings required for the intended project.
Zhaga-D4i certification covers defined products and requirements. Marks visible on a customer’s completed controller are not evidence that a bare housing or every assembled combination has the same certification. Refer to the official Zhaga Book 18 certification guidance when specifying certified nodes and luminaires.
Preguntas frecuentes
Are JL-741J-3 and JL-742J-3 complete EMS controllers?
In this application, CHI-SWEAR supplied housing and base components. The customer’s electronics, firmware and EMS integration form the finished control solution.
Does four-year feedback mean a four-year warranty?
No. The period describes customer-reported operation of inspected units. Warranty terms and performance requirements should be agreed separately for the supplied product.
Can these components support a Zhaga-D4i controller project?
They can be considered during component selection, subject to the exact mechanical design and required documentation. Finished-controller and luminaire compatibility and certification must be assessed for the specific project.
What should a Turkish customer send for a quotation?
Send the housing/base model, PCB drawing, receptacle and driver model, required IP arrangement, communication requirements, quantity in pcs and project schedule. For a retrofit, include clear luminaire and wiring photographs.
Discuss your Turkey lighting-controller project
Planning a new controller, luminaire upgrade or EMS-connected lighting project in Turkey? Send CHI-SWEAR your drawings and integration requirements for a model-specific component review and quotation.
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