The IP protection class, also known as the IP code, indicates the resistance of a product to the ingress of liquids and dust. IP Code stands for 'International Protection Code (international protection code)' or 'Ingress Protection Code (entry protection code)'. The standard defined by IEC / EN 60529 is an international standard developed by the International Electrotechnical Commission.The IP Code was created to standardize protection ratings and correctly classify products for durability.A 2-digit system is used for the IP rating; the meanings of these stepsFirst step, protection against solidsSecond step, protection against liquidsThe following tables show the degrees of protection.Digit 1, which indicates the degree of dust protection, ranges from 0 to 6.

Degree of Protection	Protection
0	Unprotected
1	Protection against solid objects greater than 50 mm in diameter
2	Protection against solid objects greater than 12.5 mm in diameter
3	Protection against solid objects greater than 2.5 mm in diameter
4	Protection against solid objects greater than 1 mm in diameter
5	Dust protected
6	Dustproof

• Digit 2, which indicates protection against water, ranges from 0 to 8.

Degree of Protection	Protection
0	Unprotected
1	Protected against vertically falling water drops
2	Protected against drops of water falling at an angle of 15 degrees
3	Protected against water spray (up to 60° angle)
4	Protected against splashing water
5	Protected against splashing water
6	Protected against strong jets of water
7	Protected against immersion in water (1 meter deep) for less than 30 minutes
8	Protected against continuous immersion in water (3 meters depth)

For example; The LED lighting fixture with IP65 protection class is dustproof and resistant to splashing water and can be used outdoors. But when immersed in water, it can get water inside. A luminaire with an IP67 rating is dustproof and can be immersed in water at a depth of 1 meter for up to 30 minutes.