@prefix dcterms: .
@prefix foaf: .
@prefix wdrs: .
@prefix owl: .
@prefix xsd: .
@prefix gr: .
@prefix xml: .
@prefix vcard: .
@prefix dc: .
@prefix rdf: .
@prefix rdfs: .
@prefix pto: .
@prefix schema: .
# OWL DL work-arounds (instead of imports)
dc:contributor a owl:AnnotationProperty.
dc:creator a owl:AnnotationProperty.
dc:rights a owl:AnnotationProperty.
dc:subject a owl:AnnotationProperty.
dc:title a owl:AnnotationProperty.
dcterms:license a owl:AnnotationProperty.
wdrs:describedby a owl:AnnotationProperty.
foaf:Document a owl:Class.
foaf:homepage a owl:AnnotationProperty.
foaf:page a owl:AnnotationProperty.
foaf:primaryTopic a owl:AnnotationProperty.
schema:Product a owl:Class.
#OWL 1 DL compatibility of the OWL2 deprecated property
owl:deprecated a owl:AnnotationProperty.
a owl:Ontology;
dc:title "PTO: The Product Types Ontology for Semantic Web-based E-Commerce"@en;
rdfs:comment """The Product Types Ontology: Good identifiers for product types based on Wikipedia
This service provides GoodRelations-compatible class definitions for any type of product or service that has an entry in the English Wikipedia.
Vocabulary: http://www.productontology.org/#
Namespace: http://www.productontology.org/
The Product Types Ontology is designed to be used in combination with GoodRelations, a standard vocabulary for the commercial aspects of offers.
See http://purl.org/goodrelations/ for more information."""@en;
rdfs:label "The Product Types Ontology for Semantic Web-based E-Commerce"@en;
dc:contributor "The class abstracts and translations of labels are taken from Wikipedia, the free encyclopedia."@en;
dc:creator "Martin Hepp"@en;
dc:rights "The class definition texts are taken from Wikipedia, the free encyclopedia under a Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license, see http://creativecommons.org/licenses/by-sa/3.0/. Accordingly, all ontology class definitions provided in here are available under the very same license."@en;
dc:subject "E-Commerce, E-Business, GoodRelations, Ontology, Wikipedia, DBPedia"@en;
dcterms:license ;
rdfs:seeAlso ;
owl:imports ;
owl:versionInfo "2024-03-29T14:41:46.573447".
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a foaf:Document;
foaf:primaryTopic .
a owl:Class;
rdfs:subClassOf gr:ProductOrService, schema:Product;
rdfs:label "LED lamp"@en;
rdfs:comment """An LED lamp or LED light is an electric light that produces light using light-emitting diodes (LEDs). LED lamps are significantly more energy-efficient than equivalent incandescent lamps and fluorescent lamps. The most efficient commercially available LED lamps have efficiencies exceeding 200 lumens per watt (lm/W) and convert more than half the input power into light. Commercial LED lamps have a lifespan several times longer than both incandescent and fluorescent lamps.
LED lamps require an electronic LED circuit to operate from mains power lines, and losses from this circuit means that the efficiency of the lamp is lower than the efficiency of the LED chips it uses. The driver circuit may require special features to be compatible with lamp dimmers intended for use on incandescent lamps. Generally the current waveform contains some amount of distortion, depending on the luminaires' technology.
The LED lamp market is projected to grow from US$75.8 billion in 2020 to US$160 billion in 2026.
LEDs come to full brightness immediately with no warm-up delay. Frequent switching on and off does not reduce life expectancy as with fluorescent lighting. Light output decreases gradually over the lifetime of the LED.
Some LED lamps are drop-in replacements for incandescent or fluorescent lamps. LED lamps may use multiple LED packages for improved light dispersal, heat dissipation, and overall cost. The text on retail LED lamp packaging may show the light output in lumens, the power consumption in watts, the color temperature in kelvins or a color description such as "warm white", "cool white" or "daylight", the operating temperature range, whether the lamp is dimmer compatible, whether the lamp is suitable for humid/damp/wet conditions, and sometimes the equivalent wattage of an incandescent lamp delivering the same output in lumens.
(Source: Wikipedia, the free encyclopedia, see http://en.wikipedia.org/wiki/LED_lamp)"""@en;
rdfs:isDefinedBy ;
rdfs:label "مصباح ثنائي باعث للضوء"@ar;
rdfs:label "LED lampa"@az;
rdfs:label "Святлодыёдная лямпа"@be;
rdfs:label "LED лампи"@bg;
rdfs:label "Llum LED"@ca;
rdfs:label "LED žárovka"@cs;
rdfs:label "Lysdiodelampe"@da;
rdfs:label "LED-Leuchtmittel"@de;
rdfs:label "Lámpara led"@es;
rdfs:seeAlso ,
,
;
wdrs:describedby , ;
foaf:homepage ;
foaf:page .