Attribute Schema Library
Attribute schemalighting

Lamps & Bulbs Attributes

Lamps and bulbs are the replacement-light category: LED, remaining linear fluorescent and CFL, HID (metal halide, high-pressure sodium), and halogen. Buyers are electrical contractors, facility and maintenance teams, lighting designers specifying retrofits, and counter customers matching what they pulled out of the ceiling. Almost every purchase is a fit-and-match against installed hardware.

The data is hard for three reasons. Naming is dual-track: the same lamp is an A19 in an ANSI catalog and an A60 on the supplier's IEC datasheet, and CCT arrives as "3000K", "30K", "830", and "Warm White" from four vendors describing one lamp. Fit-critical facts sit outside the spec table: enclosed-fixture suitability, dimmer compatibility, and ballast type live in a footnote or a warranty exclusion, not a field. And saleability is now per-jurisdiction: the Minamata phase-out and state fluorescent bans made it an attribute, not a static flag.

Variant count compounds it: one PAR30 platform spans wattage, CCT, CRI, and beam angle, and each combination is a distinct SKU with its own DLC status.

Core

Every SKU needs these. Without them the record is not a product, it is a row.

Light Technology
enum
LED

Top-level filter and the gate on everything downstream: efficacy, life, dimming behavior, and whether the lamp is still legal to sell.

Bulb Shape (ANSI)
enum
PAR38

ANSI C79.1/C78.79 envelope designation. Letter is the outline, number is the diameter in eighths of an inch. Determines fixture fit.

Base Type
enum
E26 Medium Screw

ANSI C81.61 / IEC 60061 cap designation. Wrong base means the lamp does not seat in the holder. The most common return cause in the category.

Wattage
number · W
15.5

Actual input power, not the incandescent equivalent. Drives circuit loading, rebate calculation, and energy modeling.

Initial Lumens
number · lm
1400

Delivered light output per IES LM-79. The real brightness basis for comparison across technologies; watts are not.

Correlated Color Temperature (CCT)
number · K
3000

Must match lamps already in the ceiling. A 3500K lamp in a 3000K run is visible from the floor and gets rejected on sight.

Voltage
enum · V
120-277

Line voltage or range. 120-277V universal covers most commercial; 12V/24V is low-voltage MR16; 347V is Canadian commercial.

Maximum Overall Length (MOL)
number · in
5.31

Whether the lamp physically fits the can, trim, or enclosure. LED retrofits are often longer than the lamp they replace.

Manufacturer Part Number (MPN)
identifier
LED15PAR38/930/FL40

The number the buyer reads off the old lamp or the submittal. Primary cross-reference key for every lookup and RFQ.

GTIN / UPC
identifier
00046677578701

Required for marketplace listing, EDI, barcode scanning at the counter, and matching supplier data to catalog records.

Differentiating

What buyers actually compare on. This is where catalogs win or lose the filter.

Color Rendering Index (CRI/Ra)
number
90

How accurately colors read under the lamp. 80 Ra is the commercial baseline; retail, healthcare, and paint-matching specify 90+.

Beam Angle
number · °
40

Defines spot vs flood for PAR, BR, and MR lamps. 10-25° is spot, 40-60°+ is flood. Omnidirectional lamps carry no beam angle.

Rated Life (L70)
number · hr
25000

Hours to 70% lumen maintenance, projected per IES TM-21 from LM-80 data. The warranty and relamp-cycle basis.

Dimming Compatibility
enum
Dimmable to 10%, NEMA SSL 7A

Dimmable is not a yes/no. Buyers need the dimming method and low-end, and California phase-cut LED lamps must meet NEMA SSL 7A.

ANSI Ballast Code
identifier
M137/E

For HID, the lamp must match the ballast's ANSI code. An M-code mismatch shortens life or prevents the lamp from striking.

Compliance & identifiers

Standards, regulatory data, and the identifiers channels reject you for missing.

Safety Listing & Location Rating
enum
UL 1993 Listed, Damp Location

UL 1993 / UL 8750, ETL, or CSA listing plus Dry, Damp, or Wet class. Wet-location work will not pass inspection without it.

DLC / ENERGY STAR Qualification
enum
DLC Standard, QPL ID P00012345

DLC QPL listing (with QPL ID) or ENERGY STAR certification is what utility rebate programs require. No listing, no incentive.

Country of Origin
identifier
MX

Drives tariff classification, customs entry, and Buy American / federal project eligibility. Requested on most public-sector bids.

The fields that aren't in the schema at all

What most lamps & bulbs catalogs are missing.

The table above is the schema most catalogs already have. These are the attributes that usually aren't in it — each one surfaced by a signal from the live market rather than by an audit of what's already there. This is what Anglera's Schema Foundry does on a real catalog, in this category.

Competitor signal
+ Enclosed Fixture Rated

Specialist rails like Bulbs.com expose a 'For Enclosed Fixtures' filter, and manufacturers disclaim enclosed use in warranty text. Most distributor catalogs carry no such field.

Lamp goes into a jelly jar or a sealed outdoor fixture, cooks its driver, and fails early. The warranty claim is denied and the distributor eats the replacement.

Supplier signal
+ LED Tube Type (UL Type A / B / C / A+B)

Suppliers state Type A, Type B, Type C, or dual-mode prominently on the datasheet and publish separate ballast compatibility lists. The catalog record usually flattens all of them to 'LED T8'.

A Type B ballast-bypass tube ships to a job expecting plug-and-play. The crew wires it to a live ballast, or has to re-lamp and re-wire the whole run on overtime.

Search signal
+ Jurisdiction Sale Eligibility

State-level fluorescent sale bans and the Minamata phase-out schedule make saleability depend on ship-to state. Catalogs model the lamp as either active or discontinued nationally.

A pin-base CFL or linear fluorescent ships where its sale is banned. The order is pulled, and inventory sits in a region that can no longer legally consume it.

Review signal
+ Dimmer Compatibility List

Manufacturers publish per-model dimmer compatibility matrices as separate PDFs. Buyers ask whether a lamp works on the Lutron dimmers already in the building and the site cannot answer.

Lamps flicker, drop out at the low end, or buzz on the installed dimmers. Whole-job return, and the contractor blames the counter that sold it.

Supplier signal
+ Burning Position

HID datasheets specify base-up, base-down, horizontal, or universal operating position. The constraint rarely survives into the catalog as a filterable field.

A base-up-only lamp is installed base-down. Arc tube runs hot, life collapses well short of rating, and the customer treats it as a quality failure.

How Schema Foundry finds these

Messy in, governed out.

The same value, spelled every way lighting suppliers spell it. A filter only works once they agree.

Correlated Color Temperature
3000K3000 K30K830Warm WhiteWW
3000 K

'830' is the fluorescent 3-digit code: 8 = 80s CRI, 30 = 3000K. Two attributes in one token — split it, don't parse it as CCT.

Bulb Shape
A19A-19A 19A60A19/A60A19 (A60)
A19

A19 is ANSI (19/8 in); A60 is the IEC metric equivalent (60 mm). Same lamp, two naming systems. Merging them collapses duplicate SKUs.

Base Type
E26E-26MediumMed. ScrewMedium BaseStandard
E26

Normalize to ANSI C81.61. 'Medium' is ambiguous: E27 is the medium screw base in IEC regions, and E26/E27 are not interchangeable.

Dimming Compatibility
DimmableDIMYesY100-10%Non-Dim
Dimmable, 100-10%

A bare 'Yes' discards the dimming range, which is the fact the buyer actually needs. Keep the low-end percentage attached to the flag.

What buyers ask

Every one of these should be answerable from the attributes above. If it isn't, that's a gap.

  • Will this work with my existing ballast, or do I have to bypass it?
  • Can I put this in a fully enclosed outdoor fixture?
  • Is this DLC listed so my customer gets the utility rebate?
  • Will it dim smoothly on the Lutron dimmers already in the building?
  • What replaces a 400W metal halide, and does it match my ANSI ballast code?
  • Can I still ship 4-foot fluorescent tubes into California?
  • Is this 3000K or 3500K? I need it to match the rest of the ceiling.
  • Will it physically fit the can — what's the overall length?

What channels require

The same SKU, different mandatory fields per destination.

IDEA Industry Data Warehouse (IDW)
Electrical Attribute Schema valuesMPNGTIN/UPCBrandSpec sheet PDFProduct image
DLC Qualified Products List / ENERGY STAR
Initial Lumens (LM-79)Efficacy (lm/W)CCTCRIL70 rated life (LM-80/TM-21)Safety listing
Amazon Business
GTIN/UPCWattageBase TypeBulb ShapeLumensCCT
Distributor web catalog and filter rail
Bulb ShapeBase TypeCCTCRILumensBeam Angle

Lamps & Bulbs data, in practice

Why isn't wattage enough to describe a bulb anymore?

Wattage is input power, not light output. Across LED, fluorescent, HID, and halogen, the same wattage produces very different lumens, so watts only worked as a brightness proxy while incandescent was the default. The DOE backstop requiring general service lamps to meet at least 45 lm/W removed that default from the market. Lumens (per IES LM-79) is now the comparison basis, with efficacy in lm/W for rebate and energy work. Wattage still matters — for circuit loading, fixture ratings, and rebate math — but it belongs next to lumens, not in place of it. Equivalency claims like '60W replacement' are marketing text, not a spec, and should never be the only output data on a record.

What's the difference between ANSI shape codes and the metric IEC ones?

They describe the same envelope in different units. ANSI C79.1/C78.79 uses a letter for the outline and a number for the maximum diameter in eighths of an inch: A19 is an A-shape 19/8 in (about 2.4 in) across. The IEC convention uses millimeters, so the same lamp is an A60 (60 mm). PAR38 is 38/8 in; MR16 is 16/8 in, or 50 mm. Suppliers selling into both markets send both, sometimes on the same datasheet. If your catalog treats A19 and A60 as separate values you get duplicate SKUs, split filter counts, and buyers who filter to A19 and never see half your inventory.

Which standards actually apply to lamps and bulbs?

For nomenclature: ANSI C79.1 and C78.79 for envelope shapes, ANSI C81.61 (aligned with IEC 60061) for bases and caps. For performance: IES LM-79 for photometric testing of SSL products, IES LM-80 for LED package lumen maintenance, and IES TM-21 for projecting L70 life from LM-80 data. For safety: UL 1993 for self-ballasted lamps and UL 8750 for LED equipment, with ETL and CSA as equivalent listings, plus Dry/Damp/Wet location class. For dimming: NEMA SSL 7A covers phase-cut compatibility and is referenced by California Title 20 JA8 and Title 24. For market access: DLC QPL and ENERGY STAR drive utility rebates.

Why does saleability now vary by state?

Mercury-containing lamps are regulated under the Minamata Convention, which set phase-out dates for CFLs and linear fluorescents. Several US states — including California, Vermont, Colorado, Oregon, Washington, Rhode Island, Hawaii, Minnesota, and Maine — passed their own bans on tiers of fluorescent lamp sales, with pin-base CFL and linear fluorescent restrictions taking effect on staggered dates. The result is that a lamp can be legal to sell in one state and prohibited in the next. Most catalogs model lifecycle as a single national flag, which cannot express this. The field you need is jurisdiction-level sale eligibility with an effective date, evaluated against ship-to.

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