The article contains sections titled: 1. Introduction 2. Light Generation 2.1. Thermal Radiation from Solids 2.2. Radiation from Gas Discharges 2.3. Radiation from Semiconductors (LEDs) 2.4. Modeling of Lamps 3. Main Types of Lamps 4. Lamp Chemistry 4.1. General 4.2. Transport Chemistry 4.2.1. Principles 4.2.2. Incandescent Lamps 4.2.3. Halogen Incandescent Lamps 4.2.4. Metal Halide Lamps 5. Basic Lamp Materials 5.1. Metals 5.2. Glass 5.2.1. Glass Composition and Glass Types 5.2.2. Properties 5.2.3. Glasses for Lamp Types 5.2.4. Glass‐to‐Metal Seals 5.3. Polycrystalline Alumina 5.4. Fluorescent Powders 6. Special Lamp Materials 6.1. Getters 6.2. Amalgams 6.3. Emitters 6.4. Cements and Marking Paints 7. Coatings 8. Lamp Production 9. Economic Aspects and Uses