The IK index indicates the degree of protection of the electrical material against external mechanical impacts. The index identifies the mechanical resistance which is called IK XY, where the letters XY can assume values from "00" to "10". The higher the numerical IK value, the greater the mechanical strength.
The Color Rendering Index (CRI) indicates how a source can reproduce the chromatic tones and colors of the illuminated objects in the most realistic way possible. The Index can vary from 0 to 100 where 0 is the minimum color rendering and 100 the maximum. For the houses the use of lamps with CRI>80 is sufficient. For environments such as shops or stores lamps with CRI>90, very high luminous efficiency, greater ability to enhance colors and chromatic veracity are recommended.
The luminous efficiency is the ratio between the intensity of the emitted light and the electric power absorbed by the lamp and it is measured by the ratio lumen/watt. The ratio expresses the luminous efficiency and the energy consumption. To an high luminous efficiency corresponds an high class of luminous efficency and therefore a lower energy consumption. The UE energy label show the annual consumption in kWh. The classificataion occurs in letters from A++ to E, where the lettere A++ corresponds to a consumption less than 188 kWh and the letter E corresponds to a consumption higher than 781 kWh.
Ingress Protection Code
The IP identifies the degree of protection of electrical equipment against the inflitration of external agents, solid or liquid in nature.
PROTECTION FROM SOLIDS
1 Protected against infiltration of solid objects larger than 50mm
2 Protected against infiltration of solid objects larger than 12mm
3 Protected against infiltration of solid objects larger than 2.5mm
4 Protected against infiltration of solid objects larger than 1mm
5 Protected against infiltration of dust
6 Totally protected against dust infiltration
PROTECTION FROM LIQUIDS
0 Not protected
1 Protected from vertically falling drops of water
2 Protected against falling water when tilted up to 15°