Selection support
Start with the road user, optical size, indication and controller requirement, then compare suitable GAOQIAO products.
For a 12-inch / 300 mm traffic-signal project, select the indication and mounting arrangement first, then verify the final product data sheet for optical, electrical and environmental requirements. Do not use a generic catalogue image as a substitute for project confirmation.
Continue with the 12-inch / 300 mm traffic signal solution, the traffic light size-selection guide and the LED traffic-signal maintenance checklist. For a system quote, also provide the controller and output requirement.
A replacement LED traffic light module is not interchangeable on diameter alone. Before requesting a module, confirm the indication, input, rear profile, fastening points, sealing interface, cable exit and available housing depth. For a new intersection, specifying a complete signal head allows the module, housing, visor and wiring to be reviewed as one assembly.
See the GAOQIAO 300 mm module production batch, the module inspection checklist and the housing and module specification guide. These resources explain what photographs can verify and which order-specific details still require an approved drawing or test record.
