Kelvin: What this figure means for lamps
The colour temperature of lights is a decisive purchase criterion. We tell you what light colours are all about!
Incandescent Bulbs: Construction and Mode of Operation
Incandescent bulbs are all electric bulbs whose light comes from a strongly heated and thus glowing wire made of tungsten.
Color Rendering and the Color Rendering Index
The higher the colour rendering index, the more lifelike the lighting? Read the article to find out what the colour rendering of lamps means.