RGBW Red Green Blue White

Defines more the device. For example you can have a surface-mounted wall-mounted appliance in up- and downlighter at the same time. The type then becomes 'Up- and downlighter'.

The type of light indicates the effect of the light source.

Indicates the light colour of a light source. It is expressed in Kelvin. The higher the value the whiter the light. The lower the value, the yellower the light.

Colour Rendering Index indicates how correctly a light source reproduces the colours it shines on. The higher the CRI, the more correctly the colours are rendered under the light source.

This is the angle from which the light falls starting from the light source.