Impact resistance level – this measure indicates the resistance of a plastic housing for electrical equipment. A class IK10 housing can even withstand blows from baseball bats, while a class IK00 housing breaks even when struck with a fist. Housing with a high class can be used in a football hall, for example, or if there is danger of vandalism.

The minimum standard of the HAZET LED lamps is IK protection class 7, which means they can withstand a blow with a 500 g hammer from a distance of 40 cm.

[Wikipedia / Further explanation: https://en.wikipedia.org/wiki/EN_62262]

Protection ratings in detail:

IK07: Impact with a 500 g hammer from a distance of 40 cm · impact energy 2 joules
IK08: Impact with a 1.7 kg hammer from a distance of 30 cm · impact energy 5 joules
IK09: Impact with a 5 kg hammer from a distance of 20 cm · impact energy 10 joules