Schmelter LED-Technology GmbH

Knowledge & Technology

Technical Knowledge.
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Practical guides, reference tables and expert knowledge for engineers, electricians, maintenance professionals and technical buyers—from LED fundamentals and tube dimensions to international standards and product markings.

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Choose the knowledge topic that matches your needs. Every article is linked to the relevant products, applications and technical solutions.

Colour temperature scale from 2200 K to 6500 K
Lighting Basics

Understanding Colour Temperature

Learn how colour temperature influences the appearance, atmosphere and functionality of lighting.

Learn More →
T5 LED-Röhre mit G5-Sockel
Dimensions & Base Types

Identify T5 and T8 Tubes

Compare tube lengths, base types and dimensions at a glance.

View PDF Lamp Finder →
CE marking and electrical protection classes explained
Product Markings

Understanding Luminaire Markings

Learn about protection classes, conformity markings, IP ratings and installation symbols.

View PDF Product Marking Guide →

Direct Access to Technical Topics

Technology with Practical Relevance

LED Tubes & Ballasts

ECG, magnetic and conventional ballasts, direct mains connection and universal SI4 technology.

Industrial LED Tubes →

Railway Standards & Testing

DIN EN 50155, DIN EN 45545-2, DIN EN 61373, EMC and surge testing.

Railway Lighting →

Retrofit & Obsolescence

Preserve existing systems, reproduce components and minimise conversion effort.

View solutions →

Track Lighting Systems

Use REGIO panel luminaires and PUNCTIS spotlights together in 3-circuit track systems.

Retail Lighting →

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