If you are about to bid a commercial lighting project, the line in the spec that says "LED fixtures, DLC listed" is no longer enough. Under the DesignLights Consortium's V6.0 requirements, what a fixture can do with controls is part of how it is classified, and that classification is what many utility programs look at when they decide how much to pay.
This post explains the change in plain terms, what it means for the rebate on your project, and what to write into a bid spec so you are not comparing bids that look identical on paper but qualify for very different incentives.
What DLC V6.0 actually changed
The DesignLights Consortium (DLC) maintains the Qualified Products Lists that most efficiency programs use to decide which commercial lighting products are eligible for incentives. According to ECM, those lists are used by 75% of North American energy efficiency programs (ECM, November 2025).
DLC began accepting applications under its V6.0 technical requirements on January 5, 2026 (ECM, November 2025). Two parts of the update matter for property managers and facility directors:
- Higher bar for Premium. V6.0 includes a major revision to the DLC Premium classification, with higher efficacy thresholds and more rigorous requirements for controllability (ECM, November 2025).
- A controls categorization. Each luminaire now falls into a numbered controls category, from 0 to 6, based on the controls built into the product (inside.lighting, January 2026).
The second item is the one most owners have not heard about, and it is the one that changes how you should write a spec.
The controls categories, without the jargon
Here is how inside.lighting describes the categories (inside.lighting, January 2026), translated into what you would actually be buying:
| Category | What the fixture has | In plain terms |
|---|---|---|
| 0 | No integral controls | No built-in controls |
| 1 | Controls-ready, with a receptacle for future field-installed controls | Ready for a sensor or controller later |
| 2 | Integral networked controller that is not DLC-listed | Networked, but the control layer is not separately qualified |
| 3A | Integral occupancy or traffic sensor only | Knows when someone is there |
| 3B | Integral daylight or photocell sensor only | Knows how much daylight is present |
| 4A | Integral occupancy/traffic sensor plus daylight/photocell sensor | Both of the above |
| 4B | Integral traffic or photocell and/or part-night dim functions | Dims on a schedule or by conditions |
| 5 | Integral DLC-listed networked lighting controller | Networked, with a qualified control layer |
| 6 | Integral DLC-listed networked controller plus two or more sensor functions | Networked, with two or more built-in sensors |
The practical takeaway is in one sentence from the same source: to qualify as DLC Premium, a product must be in one of Control Categories 1 through 6 (inside.lighting, January 2026). A fixture with no controls capability at all (Category 0) sits outside Premium.
In other words, the Premium tier, which some programs attach larger incentives to, now depends partly on the controls you specify, not just on the fixture's efficiency.
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Utility programs set their own incentive structures, and they vary widely. But the direction of travel is visible in programs that already pay by controls capability. inside.lighting cites the side-by-side rebates Energize Connecticut offered in 2025 for the same 2x4 linear LED luminaire (inside.lighting, January 2026):
- $25 for the luminaire without controls
- $70 for the same luminaire with an integrated dual sensor
- $90 with luminaire-level lighting controls
Those figures are specific to one program and one fixture type, and they should not be read as what your utility pays. The point is the structure: the same physical fixture, in the same ceiling, earns materially different incentives depending on how much control is built into it.
If your bid spec does not say anything about controls, you will likely receive bids priced on the lowest-category product that meets the base requirement. That can look like the cheapest bid, and it can also leave incentive dollars on the table that a controls-capable product would have captured.
The timing: the transition ends in December
There is a second reason to pay attention now. DLC set October 9, 2026 as the date by which listed products had to be updated to the new requirements, and products that were not updated will be delisted as of December 15, 2026 (DLC, transition to SSL V6.0 and LUNA V2.0). That transition period is ending.
For a project bidding this fall, that creates a practical question: which version is the product on, and will it still be listed when your utility reviews the application? Programs handle transitions differently. Some honor a grace period for projects already in their pipeline, and some move to the new list on a fixed date. A fixture that qualified last year can become ineligible for a project whose paperwork lands in January.
You do not need to track DLC's calendar yourself. You do need your contractor to confirm, in writing, the listing status of every product in the bid and the date your utility's program will recognize it.
What to specify before you bid
You do not need to write an engineering spec. A short list of requirements, applied to every bidder, will make bids comparable and protect your incentive.
1. Require DLC Premium listing, and state the controls category. Do not stop at "DLC listed." Ask for the DLC Premium designation and the controls category (1 through 6) for each fixture type in the bid. Ask for the listing documentation, not a verbal confirmation.
2. Decide what the controls are for before you choose the category. A category number is not a goal. Start from the outcome you want. For an exterior lot or garage, that is usually dimming or part-night scheduling when no one is present. For interior space it is often occupancy and daylight response. Pick the category that delivers the behavior you want, then confirm it qualifies.
3. Ask whether the controller layer is separately DLC-listed. The difference between Category 2 and Category 5 is whether the networked controller is itself DLC-listed (inside.lighting, January 2026). That distinction is the type of detail that separates a bid that looks equal from one that qualifies for a different incentive tier.
4. Require the incentive application to be in the contractor's scope. Rebate paperwork is where projects stall. Specify who prepares it, who submits it, and what happens to the incentive if the program changes terms mid-project.
5. Ask for the listing status date. Have every bidder state in writing the date each product was listed and whether it is expected to remain on the list through your project's expected application date.
6. Keep the option of controls later, deliberately. Category 1 products are controls-ready and can accept field-installed controls (inside.lighting, January 2026). If budget forces a phased approach, this is a legitimate path, but it should be a decision you make on purpose, with the future incentive question answered, not a default.
What this does not mean
A few cautions, because rebate content online tends to overpromise:
- A higher category does not guarantee a higher rebate. Whether your utility pays more for a given category is a program decision. Some pay by DLC tier, some by fixture type or watts reduced, and some pay on measured savings.
- Controls have to be commissioned to deliver savings. A networked system that is installed and never configured will qualify for the rebate and still underperform. That is a commissioning issue, not a category issue.
- Programs change. Funding is limited, and terms can shift between program years. Treat the specifics in any article, including this one, as a starting point for confirming with your utility.
How to find out what applies to your property
Start with two questions: which utility serves each of your properties, and which of its programs are open to your project type. Our utility rebate finder is a quick first pass. It tells you which programs to look into, and your contractor should then confirm the current terms and category requirements.
For the controls side, our building automation and performance page explains how networked controls are specified and verified, and our lighting retrofit page covers how controls fit into the broader retrofit scope. If you want the business case for controls rather than the incentive angle, see why controls are the highest-ROI add-on to an LED retrofit.
The bottom line
DLC V6.0 moved controls from an optional extra to part of how a product is classified. For anyone buying commercial lighting, that makes the bid spec an important place to protect your incentive. Naming the Premium listing and the controls category, and asking for the listing status in writing, costs nothing and makes bids comparable.
If you have a project coming up and want a second opinion on the spec, we offer free site assessments. We will review your current system, tell you which controls categories make sense for the way the space is used, and identify the programs that apply in your territory before you commit to anything. Reach out here to get started.
Sources
- ECM, "Final Version of DesignLights Consortium's New Technical Requirements for LED Lighting Released," November 7, 2025: ecmweb.com
- inside.lighting, "Lighting controls get rebate boost in latest DLC guidelines," January 19, 2026: inside.lighting
- DesignLights Consortium, "Transition to SSL V6.0 and LUNA V2.0 Requirements": designlights.org