{"schemaVersion":1,"slug":"flashing-indicator-lamp","name":"Flashing indicator lamp","kind":"symbol","abbreviation":"LAMP FLASH","aliases":["HLT1H13","VLT1H13"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A flashing indicator lamp provides a documented intermittent visual indication.","description":["A flashing indicator lamp provides a documented intermittent visual indication. The flash-generation function may be internal or separately controlled and should be identified."],"readingNotes":["Trace whether the flashing signal originates in the lamp assembly or the controller.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["State supply rating","Define indication meaning","Reference flash-control source"],"distinction":"A flashing indication is different from an ordinary steady lamp driven by an unlabelled intermittent signal.","facts":[{"label":"Drawing role","value":"Visual signal"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HLT1H13, VLT1H13 (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"pub-symbol-led-lights","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["indicator-lamp","relay-coil"],"artwork":"edu-flashing-indicator-lamp","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/flashing-indicator-lamp","illustration":{"url":"https://eloragrid.ai/library/illustrations/flashing-indicator-lamp.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-led-lights","title":"AutoCAD Electrical: LED lamps","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-B4FB8955-5135-4123-A293-11530B9D25EC.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}