gpd:attr:optical.light_output Stable · since 2026-06-08

Light output

Luminous flux emitted by a projection light source.

Unit lm Type quantity Requires measurement_standard Compare equal qualifiers only

Hover a chip for its registry definition. A spec number without its conditions is stored as incomplete; it never silently becomes canonical.

Labels

Facts are language-free; locale is a rendering. One concept, curated labels, eight languages at launch.

enLight output

deLichtleistung

frFlux lumineux

esFlujo luminoso

itFlusso luminoso

nlLichtopbrengst

plStrumień świetlny

svLjusflöde

Distribution

1,842 installation projectors on record, 98% with measured brightness. Every value on this page knows its percentile.

Fig. 1 · Qualifier pinned: measurement_standard = iso_21118 Axis values render from /v1/types/installation_projector/distribution

Observed synonyms

What the industry calls this. The record has one name for the concept and keeps receipts for the rest; mapping is cheap forever, creating is expensive forever.

brightness lumens output ANSI lumens light intensity luminous flux Lichtstrom

Source-field mappings grow automatically from ingestion; new synonyms feed resolution, never the registry.

In the API

The Dictionary is the same data our own agents validate against. There is no second copy.

$ curl https://api.getproductdata.com/v1/attributes/optical.light_output?locale=de-DE

{
  "id":           "gpd:attr:optical.light_output",
  "status":       "stable",
  "level":        "family",
  "data_type":    "quantity",
  "canonical_unit": "lm",
  "qualifiers":   { "required": ["measurement_standard"] },
  "definition":   "Luminous flux emitted by a projection light source.",
  "display":      { "label": "Lichtleistung" }
}

locale never changes facts. Numbers, IDs, and vocabulary references stay canonical; localization is a rendering on top.

Names are concepts.

optical.light_output is not a string. It is a concept with a definition, eight labels, and a biography. This page is the biography.