{"id":3023,"date":"2026-07-05T14:19:29","date_gmt":"2026-07-05T12:19:29","guid":{"rendered":"https:\/\/www.ortoled.com\/?page_id=3023"},"modified":"2026-07-18T19:30:05","modified_gmt":"2026-07-18T17:30:05","slug":"led-glossary","status":"publish","type":"page","link":"https:\/\/www.ortoled.com\/en\/led-glossary\/","title":{"rendered":"Led Glossary"},"content":{"rendered":"\n<meta charset=\"UTF-8\">\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n<title>LED Grow Glossary \u2014 Terms, Units of Measurement and Acronyms for Indoor Cultivation<\/title>\n<meta name=\"description\" content=\"Complete glossary for LED indoor cultivation: \u00b5mol\/J, PPF, PPFD, DLI, PAR, IP rating, driver, 0-10V dimmer. 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<div class=\"wrap\">\n    <h1 class=\"h-md rv\">LED Grow Glossary<\/h1>\n  <\/div>\n<\/section>\n<!-- \u2550\u2550\u2550 FILTER BAR \u2550\u2550\u2550 -->\n<div class=\"filter-bar\">\n  <div class=\"wrap filter-inner\">\n    <select class=\"cat-select\" id=\"catSelect\">\n      <option value=\"all\">All categories<\/option>\n      <option value=\"fotometria\">Photometry<\/option>\n      <option value=\"elettronica\">Electronics<\/option>\n      <option value=\"spettro\">Spectrum &amp; Light<\/option>\n      <option value=\"coltivazione\">Cultivation<\/option>\n      <option value=\"certificazioni\">Certifications<\/option>\n    <\/select>\n    <div class=\"search-wrap\"><input class=\"search-input\" type=\"text\" id=\"searchInput\" placeholder=\"Search term\u2026\"><\/div>\n  <\/div>\n<\/div>\n<!-- \u2550\u2550\u2550 GLOSSARY CONTENT \u2550\u2550\u2550 -->\n<section class=\"content\">\n  <div class=\"wrap\">\n    <div class=\"cat-section\" data-category=\"fotometria\">\n      <div class=\"cat-title\">Photometry \u2014 Measuring Light for Plants<\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">\u00b5mol\/J<\/span><span class=\"term-acro\">Photon Efficiency<\/span><span class=\"term-unit\">micromoles per joule<\/span><\/div><p class=\"term-def\">This is the unit that measures a LED lamp&#8217;s efficiency: how many photons useful to plants (\u00b5mol) are produced for every joule of electrical energy consumed. The higher it is, the better the lamp at equal power consumption. A good modern LED lamp exceeds 2.5 \u00b5mol\/J; the best reach 3.0\u20133.2 \u00b5mol\/J.<\/p><div class=\"term-example\"><strong>Example:<\/strong> The ORTOLED S Line 760W has an efficiency of 3.05 \u00b5mol\/J. A traditional 600W HPS reaches around 1.2\u20131.5 \u00b5mol\/J. At equal photon flux, the S Line consumes around 60% less.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">PPF<\/span><span class=\"term-acro\">Photosynthetic Photon Flux<\/span><span class=\"term-unit\">\u00b5mol\/s<\/span><\/div><p class=\"term-def\">The photosynthetic photon flux: the total quantity of PAR photons emitted by the lamp every second, regardless of direction. It doesn&#8217;t measure how many photons reach the plant, but how many are produced in total. It&#8217;s useful for comparing lamps in the same category.<\/p><div class=\"term-example\"><strong>Example:<\/strong> The Quantum Board EVO 320W has a PPF of 864 \u00b5mol\/s. To get \u00b5mol\/J, simply divide by the watts: 864 \/ 320 = 2.7 \u00b5mol\/J.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">PPFD<\/span><span class=\"term-acro\">Photosynthetic Photon Flux Density<\/span><span class=\"term-unit\">\u00b5mol\/m\u00b2\/s<\/span><\/div><p class=\"term-def\">The photosynthetic photon flux density: how many PAR photons reach one square meter of canopy every second. It&#8217;s the most important measure for understanding how much light the plant actually receives. It depends on lamp power, mounting height and coverage area.<\/p><div class=\"term-example\"><strong>Reference values:<\/strong> Vegetative: 200\u2013400 \u00b5mol\/m\u00b2\/s \u00b7 Flowering: 600\u2013900 \u00b5mol\/m\u00b2\/s \u00b7 High intensity (CO\u2082): 1000\u20131500 \u00b5mol\/m\u00b2\/s.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">DLI<\/span><span class=\"term-acro\">Daily Light Integral<\/span><span class=\"term-unit\">mol\/m\u00b2\/day<\/span><\/div><p class=\"term-def\">The daily light integral: the total quantity of PAR photons received by one square meter of canopy over 24 hours. It&#8217;s the &#8220;cumulative&#8221; measure that really counts for plant growth. Calculated as: DLI = PPFD \u00d7 hours of light \u00d7 3600 \/ 1,000,000.<\/p><div class=\"term-example\"><strong>Example:<\/strong> PPFD 600 \u00b5mol\/m\u00b2\/s for 18h \u2192 DLI = 600 \u00d7 18 \u00d7 3600 \/ 1,000,000 = 38.9 mol\/m\u00b2\/day. Optimal flowering: 35\u201345 mol\/m\u00b2\/day.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">PAR<\/span><span class=\"term-acro\">Photosynthetically Active Radiation<\/span><span class=\"term-unit\">400\u2013700 nm<\/span><\/div><p class=\"term-def\">Photosynthetically active radiation: the portion of the electromagnetic spectrum (400\u2013700 nanometers) that plants use for photosynthesis. It includes blue (400\u2013500 nm), green (500\u2013600 nm) and red (600\u2013700 nm). Only light in this range is counted in PPF and PPFD measurements.<\/p><div class=\"term-example\"><strong>Note:<\/strong> Lumens measure brightness as perceived by the human eye (peak in green at 555 nm), not light useful to plants. Two lamps with the same lumens can have very different PPFD.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Lumens vs \u00b5mol\/s<\/span><\/div><p class=\"term-def\">Lumens (lm) measure light as perceived by the human eye: they penalize blue and red, which plants love the most. \u00b5mol\/s (PPF) measure light useful for photosynthesis without spectral bias. A lamp with high photosynthetic efficiency can have few lumens but a very high PPF. Never use lumens to choose a grow lamp.<\/p><div class=\"term-example\"><strong>Real case:<\/strong> A 1000-lumen fluorescent tube emits very few \u00b5mol\/s useful to plants. A 500-lumen red LED can emit far more photosynthetically active photons.<\/div><\/div>\n    <\/div>\n    <div class=\"cat-section\" data-category=\"spettro\">\n      <div class=\"cat-title\">Spectrum &amp; Light<\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Full Spectrum<\/span><span class=\"term-acro\">Full Spectrum<\/span><\/div><p class=\"term-def\">A &#8220;full spectrum&#8221; lamp covers all the PAR spectrum bands a plant needs, from vegetative growth to flowering. It emulates natural sunlight with a mix of wavelengths: blue 400\u2013500 nm for leaf growth, green 500\u2013600 nm for canopy penetration, red 600\u2013700 nm for flowering.<\/p><div class=\"term-example\"><strong>ORTOLED uses:<\/strong> Samsung SMD2835 4000K LEDs (white full spectrum) + SMD3535 660nm red diodes to boost the red band during flowering.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Color Temperature<\/span><span class=\"term-unit\">Kelvin (K)<\/span><\/div><p class=\"term-def\">Measures the &#8220;tone&#8221; of white light: low values (2700\u20133000K) give warm\/yellow light, high values (5000\u20136500K) give cool\/bluish light. For indoor cultivation, 3000K\u20134000K is typically used: it covers both vegetative and flowering well without needing to change lamps.<\/p><div class=\"term-example\"><strong>ORTOLED ECO and QB EVO:<\/strong> Samsung 4000K LEDs \u2014 balanced between the blue band (growth) and red band (flowering), suited to the plant&#8217;s entire life cycle.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">660 nm<\/span><span class=\"term-acro\">Deep Red<\/span><\/div><p class=\"term-def\">The 660-nanometer wavelength is the absorption peak of the chlorophyll A photoreceptor. The SMD3535 660nm red diodes added to the S Line Foldable&#8217;s 4000K white LEDs specifically boost the physiological response during flowering, increasing flower and fruit formation.<\/p><div class=\"term-example\"><strong>Why it matters:<\/strong> Chlorophyll A has two absorption peaks: 430 nm (blue) and 662 nm (red). Optimizing 660nm speeds up flowering and improves final yield.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Total Agro Spectrum<\/span><\/div><p class=\"term-def\">The name ORTOLED uses for an agriculture-optimized spectrum that covers the entire PAR band (400\u2013700 nm) with emphasis on the wavelengths most effective for photosynthesis (blue 450 nm, red 660 nm), while still maintaining good vegetative performance.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Canopy<\/span><\/div><p class=\"term-def\">The plant &#8220;canopy&#8221; formed by the uppermost leaves, the area that directly receives light from the lamp. PPFD is always measured at canopy level. Canopy penetration refers to light&#8217;s ability to reach inner leaves and fruit, not just the surface ones.<\/p><\/div>\n    <\/div>\n    <div class=\"cat-section\" data-category=\"elettronica\">\n      <div class=\"cat-title\">Electronics &amp; Components<\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">LED<\/span><span class=\"term-acro\">Light Emitting Diode<\/span><\/div><p class=\"term-def\">Light emitting diode: a semiconductor that converts electrical energy directly into light with high efficiency. Unlike traditional lamps (HPS, MH), it doesn&#8217;t burn a gas or filament \u2014 light is emitted at the atomic level. This explains its very high efficiency (up to 3+ \u00b5mol\/J), long life (50,000+ hours) and the absence of harmful UV\/IR rays in grow versions.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Samsung LM301H \/ LM301B<\/span><span class=\"term-acro\">Samsung LED Chip<\/span><\/div><p class=\"term-def\">The Samsung-made LED chips most widely used in professional grow lamps. The LM301H is the high-efficiency EVO version (up to 3.1 \u00b5mol\/J per chip), the LM301B is the standard version. Both are small SMD chips that allow high density on the PCB, a 4000K white spectrum optimized for photosynthesis, and a certified long lifespan.<\/p><div class=\"term-example\"><strong>SMD2835:<\/strong> The chip format used on the S Line Foldable. Dimensions 2.8\u00d73.5 mm, high luminous efficiency. <strong>SMD3535:<\/strong> A larger format, used for the 660nm red diodes.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Driver<\/span><span class=\"term-acro\">LED Driver \/ Power Supply<\/span><\/div><p class=\"term-def\">The electronic component that converts the mains alternating current (AC) into direct current (DC) at a constant voltage to power the LEDs. Driver quality determines the lamp&#8217;s stability, efficiency and lifespan. An external driver (like Sosen or Meanwell) is separate from the light head; an integrated driver is built into the lamp body.<\/p><div class=\"term-example\"><strong>ORTOLED:<\/strong> The S Line Foldable uses an external Sosen driver (easier to replace). The ECO Series uses an integrated driver (simpler installation). The QB EVO uses an integrated driver with 0-10V control.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Dimmer 0-10V<\/span><span class=\"term-acro\">Analog Intensity Control<\/span><\/div><p class=\"term-def\">A system for controlling light intensity via an analog 0 to 10 Volt signal: 0V = off (or minimum intensity), 10V = maximum power. It&#8217;s the industry standard for professional grow lamps: compatible with almost all controllers, manual potentiometers and automation systems. It lets you adapt intensity to the different growth stages.<\/p><div class=\"term-example\"><strong>PWM alternative:<\/strong> Pulse-width modulation (PWM) is another dimming system. The EC4330 controller supports both (0-10V + PWM).<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Quantum Board<\/span><span class=\"term-acro\">QB \u2014 Flat LED Panel<\/span><\/div><p class=\"term-def\">A LED lamp format where chips are evenly distributed across a single flat, high-density panel (PCB). As opposed to the &#8220;bar&#8221; (linear strip) or &#8220;COB&#8221; (chip-on-board) format. Advantages of QB: even distribution with no hot spots, wide emission angle, low profile. It&#8217;s the preferred format for square grow boxes.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">COB<\/span><span class=\"term-acro\">Chip On Board<\/span><\/div><p class=\"term-def\">LED technology where many microscopic chips are bonded directly onto a substrate (board) in a single compact area, creating a high-intensity point light source. Excellent canopy penetration for central areas, but less uniform over large surfaces compared to Quantum Boards.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Passive Cooling<\/span><span class=\"term-acro\">Passive Cooling \/ Fanless<\/span><\/div><p class=\"term-def\">A heat dissipation system that doesn&#8217;t use mechanical fans. Heat generated by the LEDs is conducted through the PCB to an aluminum heatsink that disperses it into the air through natural convection. Advantages: silent (0 dB), zero extra power draw, no risk of mechanical failure. Requirement: good ventilation in the grow environment.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">L70 \u2014 LED Lifespan<\/span><span class=\"term-unit\">hours<\/span><\/div><p class=\"term-def\">Industry standard for measuring a LED lamp&#8217;s lifespan: the number of operating hours after which luminous flux drops to 70% of its initial value. Samsung LEDs certified L70 at 50,000 hours means that after 50,000 hours of operation, the lamp still emits at least 70% of its original light output.<\/p><div class=\"term-example\"><strong>In practice:<\/strong> With 18 hours of light per day, 50,000 hours corresponds to about 7.6 years before noticing significant degradation.<\/div><\/div>\n    <\/div>\n    <div class=\"cat-section\" data-category=\"coltivazione\">\n      <div class=\"cat-title\">Indoor Cultivation<\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Grow Box \/ Grow Tent<\/span><\/div><p class=\"term-def\">Enclosed spaces for indoor cultivation. A <strong>grow box<\/strong> is a rigid box lined on the inside with reflective material. A <strong>grow tent<\/strong> is a structure with a metal frame and a silver interior liner, more flexible and easier to assemble. Both create a controlled environment for light, temperature and humidity.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Grow Room<\/span><\/div><p class=\"term-def\">A room or space dedicated entirely to indoor cultivation, larger than a grow tent. It requires more structured ventilation, dehumidification and temperature control systems. Professional lamps like the S Line Foldable are designed for grow rooms from 2 m\u00b2 to over 20 m\u00b2.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Vegetative Phase vs Flowering<\/span><\/div><p class=\"term-def\">The two main phases of the indoor plant growth cycle. The <strong>vegetative<\/strong> phase (18h light \/ 6h dark) favors leaf and structural growth \u2014 requires PPFD 200\u2013500 \u00b5mol\/m\u00b2\/s. The <strong>flowering<\/strong> phase (12h\/12h) induces flower and fruit formation \u2014 requires PPFD 600\u20131000 \u00b5mol\/m\u00b2\/s.<\/p><div class=\"term-example\"><strong>With the 0-10V dimmer:<\/strong> you can set the same lamp to 50% during vegetative and 100% during flowering, optimizing consumption throughout the whole cycle.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">VPD<\/span><span class=\"term-acro\">Vapour Pressure Deficit<\/span><span class=\"term-unit\">kPa<\/span><\/div><p class=\"term-def\">The vapour pressure deficit: measures the difference between the water vapour pressure inside the leaf and that of the surrounding air. An optimal VPD (0.8\u20131.2 kPa during vegetative, 1.0\u20131.5 kPa during flowering) maximizes plant transpiration and CO\u2082 uptake. LED lamps produce less radiant heat than HPS, making VPD control easier.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">HPS vs LED<\/span><span class=\"term-acro\">High Pressure Sodium<\/span><\/div><p class=\"term-def\">HPS (high pressure sodium) is the traditional lighting technology for indoor cultivation. Typical efficiency: 1.0\u20131.5 \u00b5mol\/J. Modern LED reaches 2.7\u20133.1 \u00b5mol\/J: at equal photon flux it consumes 40\u201360% less. Additionally, HPS emits a lot of infrared light (heat), raises grow room temperature and requires a more powerful cooling system.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">Sunrise \/ Sunset<\/span><\/div><p class=\"term-def\">A feature of advanced controllers that simulates sunrise and sunset: lamp intensity gradually increases at the start of the photoperiod and decreases at the end, instead of switching abruptly from 0 to 100%. It reduces plant stress and improves physiological rhythms. Available on the EC4330 controller, compatible with all ORTOLED lamps.<\/p><\/div>\n    <\/div>\n    <div class=\"cat-section\" data-category=\"certificazioni\">\n      <div class=\"cat-title\">Certifications &amp; Standards<\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">IP Rating<\/span><span class=\"term-acro\">Ingress Protection<\/span><\/div><p class=\"term-def\">The IEC 60529 standard that classifies a device&#8217;s degree of protection against the ingress of solids (dust) and liquids (water). The code consists of two digits: the first indicates protection against solids (0\u20136), the second against liquids (0\u20139). <strong>IP65<\/strong> = total dust protection (6) + resistance to direct water jets (5).<\/p><div class=\"term-example\"><strong>IP44:<\/strong> protection from objects &gt;1mm + splashes \u00b7 <strong>IP65:<\/strong> total dust protection + direct water jets \u00b7 <strong>IP67:<\/strong> total dust protection + immersion up to 1m.<\/div><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">CE<\/span><span class=\"term-acro\">Conformit\u00e9 Europ\u00e9enne<\/span><\/div><p class=\"term-def\">The CE marking indicates that a product complies with the applicable European directives (electrical safety, electromagnetic compatibility, etc.) and can be freely marketed within the EU. It&#8217;s not a quality mark but a minimum legal requirement for sale in Europe.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">RoHS<\/span><span class=\"term-acro\">Restriction of Hazardous Substances<\/span><\/div><p class=\"term-def\">A European directive that restricts the use of hazardous substances (lead, mercury, cadmium, etc.) in electrical and electronic products. RoHS certification ensures the lamp doesn&#8217;t contain toxic materials, important both for user safety and end-of-life disposal.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">CEM \/ EMC<\/span><span class=\"term-acro\">Electromagnetic Compatibility<\/span><\/div><p class=\"term-def\">Electromagnetic compatibility certification ensures the device doesn&#8217;t emit electromagnetic interference that disrupts other equipment, and that it&#8217;s immune to external interference. Important in grow rooms where lamps, fans, pumps and control systems coexist.<\/p><\/div>\n      <div class=\"fitem term-card\"><div class=\"term-header\"><span class=\"term-name\">AC 110\u2013277V<\/span><span class=\"term-acro\">Universal Mains Voltage<\/span><\/div><p class=\"term-def\">The alternating voltage range accepted by the lamp&#8217;s power supply. A driver with a universal 110\u2013277V input works on both European grids (220\u2013230V) and American\/Japanese grids (110\u2013120V), without adapters or special configuration. All ORTOLED ECO Series lamps accept 110\u2013277V AC.<\/p><\/div>\n    <\/div>\n    <div class=\"no-results\" id=\"noResults\">No terms found. Try another keyword.<\/div>\n  <\/div>\n<\/section>\n<!-- \u2550\u2550\u2550 FINAL CTA \u2550\u2550\u2550 -->\n<section class=\"final tint\">\n  <div class=\"wrap rv\">\n    <span class=\"eyebrow\" style=\"justify-content:center\">Ready to choose?<\/span>\n    <h2 class=\"h-md\">Find the right<br>lamp for you<\/h2>\n    <p>Now that you know the terms, compare our series and find the one suited to your grow.<\/p>\n    <div class=\"hero-ctas\">\n      <a class=\"btn btn-solid\" href=\"https:\/\/www.ortoled.com\/en\/shop\/\">Go to shop<svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.2\" stroke-linecap=\"round\" stroke-linejoin=\"round\"><path d=\"M5 12h14M13 6l6 6-6 6\"><\/path><\/svg><\/a>\n    <\/div>\n  <\/div>\n<\/section>\n<script>\n(function(){\n  var io=new IntersectionObserver(function(es){es.forEach(function(e){if(e.isIntersecting){e.target.classList.add('in');io.unobserve(e.target);}});},{threshold:.12,rootMargin:'0px 0px -8% 0px'});\n  document.querySelectorAll('.rv').forEach(function(el){io.observe(el);});\n  document.querySelectorAll('.mobile a').forEach(function(a){a.addEventListener('click',function(){document.body.classList.remove('menu-open');});});\n})();\n\/* \u2500\u2500 Filtro categorie (tendina) + ricerca live \u2500\u2500 *\/\nvar catSelect=document.getElementById('catSelect');\ncatSelect.addEventListener('change',function(){\n  var cat=this.value;\n  document.querySelectorAll('.cat-section').forEach(function(sec){sec.style.display=(cat==='all'||sec.dataset.category===cat)?'':'none';});\n  document.getElementById('searchInput').value='';document.getElementById('noResults').style.display='none';\n  document.querySelectorAll('.term-card').forEach(function(c){c.style.display='';});\n});\ndocument.getElementById('searchInput').addEventListener('input',function(){\n  var q=this.value.toLowerCase().trim();var visible=0;\n  document.querySelectorAll('.cat-section').forEach(function(sec){sec.style.display='';});\n  catSelect.value='all';\n  document.querySelectorAll('.term-card').forEach(function(card){var t=card.textContent.toLowerCase();if(!q||t.includes(q)){card.style.display='';visible++;}else{card.style.display='none';}});\n  document.querySelectorAll('.cat-section').forEach(function(sec){var any=Array.from(sec.querySelectorAll('.term-card')).some(function(c){return c.style.display!=='none';});sec.style.display=any?'':'none';});\n  document.getElementById('noResults').style.display=visible===0?'block':'none';\n});\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>LED Grow Glossary \u2014 Terms, Units of Measurement and Acronyms for Indoor Cultivation LED Grow Glossary All categoriesPhotometryElectronicsSpectrum &amp; LightCultivationCertifications<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3023","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/pages\/3023","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/comments?post=3023"}],"version-history":[{"count":1,"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/pages\/3023\/revisions"}],"predecessor-version":[{"id":3025,"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/pages\/3023\/revisions\/3025"}],"wp:attachment":[{"href":"https:\/\/www.ortoled.com\/en\/wp-json\/wp\/v2\/media?parent=3023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}