| Mounting method | Recessed, surface-mounted, or a fixture installed in a protective housing | Choose a mounting style that matches the ceiling construction and the facility’s security requirements. Recessed installations need adequate space above the ceiling. | Confirm ceiling access, fixture cut-out dimensions, mounting depth, and the approved fixing method before ordering. |
| Ceiling construction | Concrete, suspended ceiling, or another ceiling type | Use a fixture and mounting arrangement designed for the actual ceiling material. A standard ceiling clip may not be suitable for a secure or solid ceiling. | Check the ceiling drawings, available plenum space, structural support, and whether access from above is permitted. |
| Security and tamper resistance | Lens retention, exposed fasteners, accessible edges, and resistance to unauthorized removal | Where required by the facility, specify a secure, tamper-resistant design with compatible captive or security fasteners. “Anti-ligature” suitability depends on the full installation, not the fixture label alone. | Obtain approval from the project’s security or clinical-risk authority and review the installed assembly, including trim and fasteners. |
| Wiring access | Connection location, conduit or cable entry, and access for installation and maintenance | Select a wiring arrangement compatible with the site’s permitted cable routes and access restrictions. Keep connections enclosed as required by the design. | Confirm entry direction, junction-box location, conductor type, local wiring rules, and whether maintenance access is available. |
| Supply voltage and driver | Input voltage, driver type, dimming method, and driver location | Match the driver to the building supply and any specified control system. Dimming compatibility depends on the driver and control equipment. | Check the product’s electrical data, supply frequency, control protocol, and any requirements for remote or accessible drivers. |
| Ingress protection | IP rating required for dust and water exposure | Choose an IP rating based on the room’s actual cleaning method and moisture exposure. A higher IP rating does not by itself establish impact resistance or tamper resistance. | Review the fixture’s tested rating and confirm that the installed assembly maintains the required protection. |
| Impact resistance | Lens and housing resistance to the anticipated level of impact | Specify an appropriate impact rating where impact is a foreseeable risk. IK ratings describe mechanical impact resistance; they do not replace security or ligature-risk assessment. | Check the documented test rating and ensure it applies to the complete fixture configuration being installed. |
| Temperature and environment | Ambient temperature, humidity, cleaning chemicals, and operating conditions | Use a fixture whose stated operating range and materials are suitable for the room. Chemical compatibility should be confirmed for the cleaning products used on site. | Compare the manufacturer’s environmental limits with the project specification and cleaning procedure. |
| Light output and distribution | Required illuminance, beam distribution, glare, and room layout | Select output and optics using a lighting calculation rather than wattage alone. Appropriate uniformity and glare control depend on the room and task. | Review photometric data and confirm the design against applicable lighting requirements for the facility. |
| Colour appearance | Correlated colour temperature and colour rendering | Choose colour characteristics to suit the project’s visual needs and lighting specification. Keep selections consistent where uniform appearance is required. | Confirm the specified colour temperature and colour-rendering data on the product schedule and submittal. |
| Emergency lighting | Whether the luminaire must operate during a mains failure | If emergency operation is required, specify a compatible emergency version or a separately designed emergency-lighting arrangement. | Verify emergency duration, testing method, monitoring requirements, and compliance with local regulations. |
| Maintenance and replacement | Access to the light source, driver, and replaceable components | Plan maintenance around the facility’s access controls. Consider serviceable components and a replacement process that does not compromise secure mounting. | Confirm isolation procedures, service access, spare-part availability, and who is authorized to perform maintenance. |
| Documentation and approvals | Electrical, photometric, environmental, and security-related documentation | Use documented product data that supports the project specification; do not rely on a general product description to establish compliance. | Review drawings, installation instructions, test reports, certifications, and approvals required by the authority having jurisdiction. |
