The IP protection level consists of two numbers. The first number indicates the dustproof and foreign body intrusion prevention level of the lamp. The second number indicates the tightness of the lamp against moisture and water intrusion. The higher the number, the higher the protection level. Table 1 and Table 2 show the protection levels indicated by two tag numbers.

The protection level indicated by the first characteristic number (number)

The first marked number:

0 No protection, no special protection for people or things other than IP0-

1 Prevent the intrusion of solid objects larger than 50mm, and prevent the human body (such as palm) from accidentally contacting the parts inside the lamp. Prevent foreign bodies with larger size (diameter greater than 50mm) from invading IP 1-

2 to prevent the invasion of solids larger than 12mm, and to prevent people's fingers from touching the internal parts of lamps. Prevent medium-sized foreign objects (diameter greater than12mm and length greater than 80mm) from invading IP2-

3 to prevent the invasion of solids larger than 2.5mm, and to prevent tools, wires or similar small foreign bodies with a diameter or thickness larger than 2.5mm from invading and contacting the internal parts of lamps and lanterns IP3-

4. Prevent the invasion of solid objects larger than 1.0mm, and prevent tools, wires or similar small foreign objects with a diameter or thickness larger than 1.0mm from invading and contacting the internal parts of lamps and lanterns IP4-

5 dust-proof, completely prevent foreign bodies from invading. Although dust intrusion cannot be completely prevented, the amount of dust intrusion will not affect the normal work of lamps.