Primary audience: Facility managers
Define what stays in place
Retrofit is often used to describe an entire upgrade project. It does not identify what happens to each existing fixture. A lamp replacement, a conversion kit installed in a retained housing and a complete new luminaire are different scopes of work.
A conversion kit must suit the host equipment and follow its documented installation method. A complete replacement removes the old luminaire and introduces a new assembly, although some supporting infrastructure may remain. Neither approach establishes compatibility with existing controls, mounting or emergency arrangements without review.
DOE's troffer-retrofit guide compares lamps, retrofit kits and new luminaires as distinct paths. Use that distinction in the survey and quotation. An instruction to upgrade every troffer leaves too much uncertainty about the retained equipment and required work.
For each fixture type, mark the housing, light source, driver or ballast, optics, wiring connections and controls as retained, removed or replaced. Have the contractor confirm the proposed scope. This makes competing project approaches easier to compare without assuming that every quotation includes the same work.
Inspect the host before selecting a kit
A housing worth retaining must first be identified and assessed. Record its label, dimensions, construction, condition and access. A nominal size is not enough to establish that a conversion kit fits its internal space or attachment points.
The retrofit-kit guidance from UL explains that instructions identify suitable host luminaires through specific models or defined mechanical and electrical criteria. Follow those criteria rather than treating an assortment of compatible-looking parts as a complete conversion system.
Inspect representative fixtures from each installation period. A building may contain different housings behind similar ceiling appearances. Document damaged supports, deteriorated components and other conditions for the responsible professional to assess. A sample that fits one room does not establish fit throughout the property.
Ask how future service will work after conversion. The maintenance record should identify both the retained host and the installed kit, with instructions and required markings. Keep photographs before and after the work. These records help a later technician understand the modified assembly without reconstructing the original project from memory.
Compare the work and the resulting lighting
| Project factor | Retained-housing kit | Complete fixture replacement |
|---|---|---|
| Existing condition | Host must meet the kit's criteria | Review supports and retained infrastructure |
| Physical work | Document removal and conversion steps | Document removal, mounting and access |
| Optical result | Check the converted assembly's data | Check the new fixture's distribution |
| Controls | Verify the installed kit and driver | Order the intended driver and accessories |
| Maintenance record | Retain host and kit identities | Retain complete model and configuration |
Do not decide using fixture count alone. Include access equipment, working hours, ceiling disturbance, controls work and disposal arrangements in the project comparison. Identify who restores any disturbed finishes and how occupied areas remain available.
Review the light distribution at the actual task surfaces. Reusing existing locations can preserve an unsuitable layout. Conversely, a new housing in the same location does not automatically correct shadows from changed furniture or storage racks.
A mock-up should answer specific uncertainties: physical fit, expected work sequence, visual result and control behaviour. Record what was tested and which conditions remain untested. Use those findings to revise the scope before extending the work to the rest of the building.
Use the product category Allmax actually publishes
We publish complete TRF troffers, AL-TRUF troffers and MFP01 flat panels. Those pages do not describe troffer conversion kits for retained housings. Specify them as complete fixtures using their documented installation requirements.
For exterior replacement, the AR07 area-light page describes complete area lights and mounting accessories. We do not publish a pole-head retrofit kit. Replacing a head still requires review of the pole, mounting interface, electrical supply and proposed distribution.
Downlights are a separate documented category. The 4-inch recessed retrofit downlight and 6-inch recessed retrofit downlight are published retrofit products. Their existence does not establish a retrofit kit for a troffer or area-light housing.
Keep that distinction in the enquiry title and fixture schedule. If the project requires a retained-housing troffer conversion, state that requirement before comparing complete replacement products. If it permits either approach, request separate scopes so the owner can assess the installation and maintenance consequences of each.
Build a decision file before removal starts
Facility managers should keep one project file containing the survey, approved scope, fixture schedule and installation documents. Where an incentive is involved, check the utility's current sequence before removing equipment. For example, PSE's project lighting program requires prior approval and confirmation of the existing lighting. Other programs may use different processes.
- Photograph labels, housings, controls, mounting and representative work areas.
- Record fixture quantities, operating hours and present lighting problems.
- Identify what each proposed approach retains and replaces.
- Attach compatibility evidence, drawings and the required control sequence.
- Agree on access, shutdowns, mock-up review and acceptance responsibilities.
- Define the final asset schedule and maintenance documents for handover.
Send the survey and preferred scope through RFQ. Ask your distributor to keep complete-fixture selections separate from any independently specified conversion work. The specifying engineer should review the resulting layout and any proposed departure from the project requirements.
Retain the accepted version of each document. When the scope changes, update both the order and the installation schedule so the site team does not work from an earlier assumption.
Related guides
- Commercial Lighting Retrofit Audit: A Sales Rep Checklist
- Commercial Retrofit Downlights: Housing and Controls
- LED Troffer vs Flat Panel: Commercial Ceiling Guide
Send the site survey and maintenance requirements.
Browse all buyer guides or send your fixture schedule for a quote.
Follow NEC/local code and use a licensed electrician.