**URL**: https://todo-lux.com/en/blog **Locale**: en **Title**: Todolux Blog --- Blog ====== Updates, trends, and technical insights from the lighting sector. Search All categories Control and Dimming CRI Energy Efficiency Photometry Office Lighting Standards and Regulations Optics and Distribution Product Safety All tags 0-10V Beam Angle Casambi CE Marking Color Quality Color Rendering CRI DALI-2 DIALux DMX Downlights Ecodesign EMC EN 12464 EN 13201 EN 1838 EN 60598 ENEC EPREL Flicker Glare High-Bay LED Drivers LED Lifetime Lighting Sensors Linear Luminaires Lumens per Watt Luminaire Testing Luminance Luminous Efficacy Microprismatic Optics Photobiological Safety Photometric Distribution R9 Reflectances Road Lighting RoHS SDCM TM-30 UGR VEEI Visual Comfort Featured -------- Featured [ ![Professional Lighting Optics: How to Choose Luminaires and Light Distributions for Every Application](https://todo-lux.com/storage/2636/conversions/01KR0TPGBWP36WE4XFQS2J2DX8-blog-card.webp?v=1784218004) ](https://todo-lux.com/en/blog/opticas-iluminacion-profesional-tipos-luminarias-aplicaciones) [ Standards and Regulations ](https://todo-lux.com/en/blog/category/normativa-y-estandares) [ Optics and Distribution ](https://todo-lux.com/en/blog/category/opticas-y-distribucion) [### Professional Lighting Optics: How to Choose Luminaires and Light Distributions for Every Application ](https://todo-lux.com/en/blog/opticas-iluminacion-profesional-tipos-luminarias-aplicaciones) Expert guide to professional lighting optics: photometric distribution, beam angle, luminaire types, and application-based specification criteria. 14/04/2026 · Todolux Lighting · 24 mins read [ Read article → ](https://todo-lux.com/en/blog/opticas-iluminacion-profesional-tipos-luminarias-aplicaciones) Posts ----- [ Standards and Regulations ](https://todo-lux.com/en/blog/category/normativa-y-estandares) [ ![Lighting certifications, testing and compliance: what professionals should really demand from a luminaire](https://todo-lux.com/storage/14608/conversions/01KZB39R4RZMPBFF1YS2W0M4QW-blog-card.webp?v=1786005224) Lighting certifications, testing and compliance: what professionals should really demand from a luminaire ----------------------------------------------------------------------------------------------------------- A practical guide to real luminaire compliance: CE marking, EU Declaration of Conformity, test reports, ENEC, EPREL, photometry and verifiable technical documentation. 06/08/2026 · Todolux Lighting · 10 mins read ](https://todo-lux.com/en/blog/certificados-ensayos-conformidad-iluminacion-profesional) [ Photometry ](https://todo-lux.com/en/blog/category/fotometria) [ ![Luminous efficacy in technical lighting: how to read lm/W without mistakes](https://todo-lux.com/storage/13199/conversions/01KWV8HJRHDR43B624ZAJC9NMR-blog-card.webp?v=1784218005) Luminous efficacy in technical lighting: how to read lm/W without mistakes ---------------------------------------------------------------------------- Technical guide to interpreting lumens per watt: LED, module and luminaire efficacy, plus the impact of CRI, optics, driver losses, temperature and useful project performance. 06/07/2026 · Todolux Lighting · 9 mins read ](https://todo-lux.com/en/blog/eficacia-luminosa-iluminacion-tecnica-lumenes-por-vatio) [ Standards and Regulations ](https://todo-lux.com/en/blog/category/normativa-y-estandares) [ ![European Technical Lighting Regulations: Safety, Energy Efficiency and Lighting Design in One Framework](https://todo-lux.com/storage/11784/conversions/01KW9S070CJWZCE3YHQBANG1N4-blog-card.webp?v=1784218006) European Technical Lighting Regulations: Safety, Energy Efficiency and Lighting Design in One Framework --------------------------------------------------------------------------------------------------------- A practical guide to European technical lighting regulation: CE, EN 60598, EMC, RoHS, ecodesign, EPREL and design standards such as EN 12464, EN 13201 and EN 1838. 29/06/2026 · Todolux Lighting · 11 mins read ](https://todo-lux.com/en/blog/normativa-iluminacion-tecnica-europa-seguridad-eficiencia-diseno) [ Photometry ](https://todo-lux.com/en/blog/category/fotometria) [ ![CRI in Lighting: What It Measures, Its Limits and How to Specify It Professionally](https://todo-lux.com/storage/6882/conversions/01KVA4CG6YWWRRMGNC7D4V4FYP-blog-card.webp?v=1784218005) CRI in Lighting: What It Measures, Its Limits and How to Specify It Professionally ------------------------------------------------------------------------------------ Professional guide to CRI/Ra in lighting: what it measures, its limits, why R9 matters and when TM-30 helps specify color rendition more accurately. 18/06/2026 · Todolux Lighting · 19 mins read ](https://todo-lux.com/en/blog/cri-iluminacion-que-mide-limites-especificacion-profesional) [ Office Lighting ](https://todo-lux.com/en/blog/category/iluminacion-oficinas) [ ![How to calculate and comply with UGR in offices under EN 12464-1](https://todo-lux.com/storage/2616/conversions/01KQWADC4R2PHB1378JBTH64FK-blog-card.webp?v=1784218007) How to calculate and comply with UGR in offices under EN 12464-1 ------------------------------------------------------------------ Technical guide to UGR in offices: what it measures, how it is calculated, what EN 12464-1 requires, common specification mistakes, and how to design visual comfort without sacrifi... 05/05/2026 · Todolux Lighting · 19 mins read ](https://todo-lux.com/en/blog/ugr-oficinas-calculo-cumplimiento-en-12464) [ Standards and Regulations ](https://todo-lux.com/en/blog/category/normativa-y-estandares) [ ![Professional Lighting Dimming and Control Systems: How to Specify DALI-2, 0-10V, DMX and Casambi Without Costly Mistakes](https://todo-lux.com/storage/2610/conversions/01KQVVQG85WVCPVYZSEPHX01FR-blog-card.webp?v=1784218004) Professional Lighting Dimming and Control Systems: How to Specify DALI-2, 0-10V, DMX and Casambi Without Costly Mistakes -------------------------------------------------------------------------------------------------------------------------- Advanced guide to professional lighting dimming and control systems: drivers, DALI-2, 0-10V vs 1-10V, DMX, Casambi, sensors, flicker, standards and real-world specification criteri... 21/04/2026 · Todolux Lighting · 36 mins read ](https://todo-lux.com/en/blog/sistemas-regulacion-control-iluminacion-profesional)