Indoor built-in

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

This is the colour of which the device is mainly composed.

These are the visible materials that make up the luminaire.

IP stands for "International Potection. The first digit indicates dust density. The second indicates water density. However, if a third digit is included, it refers to the impact resistance or 'I K' value.