Replace the whole luminaire where appropriate
A purpose-designed LED luminaire can provide a clearer warranty, tested photometry and a defined driver and thermal system. It also avoids retaining aged lampholders, wiring or control gear whose condition is uncertain.
Check ceilings and making-good
Panel apertures, suspension points, trunking positions and decorative finishes can constrain the replacement. Survey these details early and include adapters, pattresses, infill work or revised mounting arrangements in the project cost.
Keep emergency and controls in scope
Identify emergency fittings before removal and confirm how the new installation will be tested. Occupancy sensing, daylight response or DALI control may improve the upgrade, but compatibility, wiring and commissioning must be specified rather than assumed.