Browse practical answers on traffic signal selection, controllers, solar warning lights, certifications, customisation and installation planning.
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Turn a question into a useful project enquiry
Use the questions above to narrow down a selection or installation issue, then relate the answer to a specific model and site. A general answer about signal size, power or materials helps prepare an enquiry; the final configuration still needs the product drawing and the requirements of the actual project.
For a new junction, begin with the required movements, indications and controller arrangement. For replacement work, begin with the installed model and the part that needs changing. This distinction helps avoid selecting a complete head when a compatible module is needed, or choosing a replacement part without checking its electrical interface.
Information to bring to the review
- Selection questions: include the intended application, required symbols, nominal size and proposed mounting arrangement.
- Compatibility questions: provide the controller or signal model, supply information and available wiring documentation.
- Maintenance questions: describe the observed symptom and include photographs of the product label and affected component.
- Purchasing questions: list quantities, destination and the drawings or documents required for review.
Send the relevant model links and project information through GAOQIAO contact. Keep the final product configuration and document list attached to the quotation for that project.
Keep the model reference with the answer
When sharing an answer with your team, attach the relevant product link and drawing revision. Record any point that still needs confirmation for the selected model, particularly the electrical version, mounting interface and controller connection. This keeps a general FAQ answer connected to the actual purchasing or maintenance decision.