Application practice formalized
Technical support began with a simple rule: capture the intended task and installation condition before recommending a device or luminaire.
Application knowledge, documented
About Legrand lighting support
Since 1987, our working approach has centered on making complex electrical and illumination choices easier to discuss across design, installation and facility teams.
Milestones shaped by how projects are specified
Digital photometric workflows
IES and LDT documentation became a core handoff, allowing project teams to test candela distribution and expected illuminance within their own calculation models.
Controls coordination expanded
Selection conversations incorporated occupancy sensing, daylight harvesting and commissioning responsibilities alongside light output and visual quality.
Serviceability belongs in the first conversation
Integrated assemblies can reduce size and simplify thermal design, while replaceable drivers or light engines may reduce disruption during long operating periods. Neither route is universally preferable.
Document interfaces
Record driver, dimming and sensor compatibility before procurement.
Plan access
Check ceiling access, cleaning exposure and replacement labor.
State limitations
L70 projections are not guarantees of color stability or driver lifetime.
Keep evidence
Retain schedules, settings and approved alternates for facility teams.
Certification context
UL, CE and RoHS pathways are referenced where applicable. Certification scope varies by model, market and configuration, so the marked product documentation must be checked rather than inferred from a family name.
Our documentation practice distinguishes measured performance from projected life. LM-79 reports can substantiate electrical and photometric results for a tested configuration; LM-80 data and TM-21 calculations support lumen-maintenance projections under stated temperature and duration conditions. They do not establish installed driver life, field temperature or cleaning intervals. That distinction helps specifiers ask for the evidence appropriate to each claim.
Build a project record your whole team can use
We can help organize selection questions without replacing the engineer of record, local code review or on-site commissioning.