Practical answer
Review the complete thermal and sealing path, not a temperature slogan
Record real ambient, solar exposure, mounting orientation, operating hours and dust-cleaning conditions. Ask how heat moves from LED board and driver through the housing, and confirm the declared test or rating applies to the offered power, driver and enclosure.
Decision matrix
| Site condition | Specification response | Approval evidence |
|---|---|---|
| High solar exposure | Limit absorbed heat and preserve thermal path | Material, finish and ambient declaration |
| Fine dust accumulation | Reduce traps and plan cleaning access | Enclosure detail and maintenance method |
| Remote high operating hours | Prioritize serviceable drivers and surge strategy | Component schedule, protection and spares plan |
Selection and verification workflow
- Define ambient, sun and duty cycle.
- Trace LED and driver heat paths.
- Review seals, vents and cable entries.
- Plan dust inspection and cleaning.
- Compare evidence for the offered configuration.
Limits and responsibility boundaries
- Maximum ambient is not the same as surface temperature.
- Ingress rating does not describe thermal endurance.
- Lifetime projections depend on stated test assumptions.
Evidence to request before approval
Treat a model name or brochure statement as a starting point. The offered construction and the supporting file must refer to the same configuration.
- Declared ambient and operating orientation.
- Driver model and protection data.
- Thermal construction or test summary.
- Seal, vent and cable-entry details.
- Cleaning interval and spare-parts plan.
RFQ input checklist
A comparable quotation needs the same site inputs, document scope and commercial assumptions from every bidder.
- Country, city, site plan, application zones and current project stage.
- Fixture quantities, mounting details, voltage, CCT, beam and control requirements.
- Heat, dust, salt, water, irrigation, public-access and maintenance exposure.
- Datasheet, photometric file, drawing, material, finish and test-evidence requirements.
- Sample, mock-up, packing, spare-parts, delivery and warranty expectations.