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IP(Abbreviation of Ingress Protection) degree is established by INTERNATIONALELECTROTECHNICALCOMMISSION,used to identify the level of protection against foreign objects/dust into the body (shell )of a electronic equipment such as a lamp.

There are two digits followed IP (ingress protection),the first digit represents the protection level against ingress of foreign objects(hands,tools,dusts),prevents these objects from the electric part in the electric equipment.

The second digit represents the protection level against ingress of moisture and water into the electric equipment. The bigger of the digits,the greater of the protection.

First digit(Ingress of objects)                  
0 No protection (0%)
1 Protect against objects over 50mm e.g.hands,tools
2 Protect against solid objects over 12.5mm e.g. fingers
3 Protect against solid objects over 2.5mm e.g. cables
4 Protect against solid objects over 1.0mm e.g. insects
5 Failed to protect ingress of dust but won’t influence the working of an equipment
6 Protect against dust ingress.(100%)

Second digit(Ingress of water)                            
0 No protection (0%)
1 Protect against vertically falling drops of water 
2 Protect against drops of water at an inclination angle of 15° from upright
3 Protect against sprays of water from any direction, or an inclination angle of less than 60° from upright
4 Protect against splash water from any direction
5 Protect against spray water from any direction
6 Protect against billow water from any direction on a board
7 Protect against in low pressure,short periods of immersion in water.
8 Protect against in specified pressure,durable periods of immersion in water 

E.G.IP65 degree is dust-proof and protected against spray water from any direction.

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