{"id":4007,"date":"2026-04-24T03:18:50","date_gmt":"2026-04-24T03:18:50","guid":{"rendered":"https:\/\/gqlamp.com\/?p=4007"},"modified":"2026-04-24T03:18:50","modified_gmt":"2026-04-24T03:18:50","slug":"facade-linear-light-guide","status":"publish","type":"post","link":"https:\/\/gqlamp.com\/ar\/blog\/facade-linear-light-guide\/","title":{"rendered":"\u0627\u0644\u0636\u0648\u0621 \u0627\u0644\u062e\u0637\u064a \u0644\u0644\u0648\u0627\u062c\u0647\u0629: \u062f\u0644\u064a\u0644 \u0627\u0644\u062a\u0635\u0645\u064a\u0645 \u0648\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0643\u0627\u0645\u0644 (2026)"},"content":{"rendered":"
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Reviewed by the Guangqi engineering team \u2014 10+ years of outdoor LED fixture manufacturing, CE \/ RoHS \/ IP66 certified production since 2010.<\/p>\n

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Quick Specs \u2014 Typical Facade Linear Light Parameters<\/h3>\n\n\n\n\n\n\n\n\n\n\n\n
Luminous efficacy<\/td>\n100\u2013140 lm\/W<\/td>\n<\/tr>\n
Beam angle options<\/td>\n10\u00b0 (grazing) \u2192 60\u00b0 (wall washing)<\/td>\n<\/tr>\n
Input voltage<\/td>\nDC 24V \/ 36V \/ 48V<\/td>\n<\/tr>\n
IP ingress rating<\/td>\nIP65 \/ IP66 (IEC 60529)<\/td>\n<\/tr>\n
Control protocols<\/td>\nDMX512, Art-Net, sACN, DALI-2, KNX, TTL\/SPI<\/td>\n<\/tr>\n
Rated lifespan<\/td>\nL70 > 50,000 hrs<\/td>\n<\/tr>\n
LED density<\/td>\n48\u2013120 LEDs\/m<\/td>\n<\/tr>\n
CCT options<\/td>\n2700K \/ 3000K \/ 4000K \/ 6000K \u2014 or RGB \/ RGBW \/ tunable white<\/td>\n<\/tr>\n
Operating temperature<\/td>\n\u221220\u00a0\u00b0C to +50\u00a0\u00b0C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

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Selecting a facade linear luminaire is a design-engineering choice, not a warehouse option. It involves photometric modeling, ingress-protection verification to IEC60529, Dark-Sky ordinance and BUG rating thresholds under LEEDv4 SS-8, and a control network topology that can stand a decade of maintenance. This manual walks a designer through all of those choices from first site survey to as-built records.<\/p>\n

Below ten chapters you will find the working flow path a lighting designer or consulting engineer employs when a proposal progresses from concept to sign-off. Each chapter answers a specific question for the reader, provides a a practical outcome, and references primary standards in those areas where the numbers are not up for debate.<\/p>\n

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1. What Is a Facade Linear Light \u2014 and Why Does It Work for Architecture?<\/h2>\n

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A facade linear light \u2014 often called an LED linear light in manufacturer catalogs \u2014 is a long exterior luminaire. Segments run 300\u20131200\u00a0mm in length and link end-to-end into continuous runs along the face of a building. Four components make up the fixture: an extruded aluminum shell that doubles as passive heat sink, an LED array (single-channel white or multi-channel RGB\/RGBW), a secondary optic that shapes the beam between roughly 10\u00b0 and 60\u00b0, and a sealed lens or diffuser giving the assembly an IP65 or IP66 rating per IEC 60529.<\/p>\n

What makes a facade linear light a better choice for building envelope illumination on building facades than floods, raw LED strip, or even linear uplights? Three factors are traced to how the eye interprets architecture:<\/p>\n