IP (International Protection) protection rating system is being drafted by the IEC (International Electro Technical Commission). The lamp is classfied based on the prevent intrusion of foreign matter,dust , waterproof, anti-moisture. Foreign matter refers to live parts within the lamp tools and human finger can not touch to avoid electric shock.
IP protection class is composed by two figures, the first number indicates the dustproof ie preventing intrusion of foreign material; the second number represents the lamp against moisture, water invasion. The larger the number, the better the lamp, the two figures marked protection level represents indicating degree of protection are shown bellow.
The first one number marked characteristic refers to the degree of protection
0 no protection no special protection against the outside IP0-
1 prevent the intrusion of solid objects greater than 50mm and the human (eg palm) accidentally touching the inside of the LED lamp parts. Prevent foreign objects with larger size (diameter greater than 50mm) intrusion IP1-
2 prevent the intrusion of solid objects greater than 12mm and a human being’s finger touching the inside of the LED lamp parts. Prevent the foreign objects with medium size (diameter greater than 12mm, a length greater than 80mm) intrusion IP2-
3 prevent the intrusion of solid objects greater than 2.5mm or tools, wires or foreign objects in diameter and thickness greater than2.5mm prevention and contacting with the LED light and internal parts IP3-
4 prevent the intrusion of solid objects greater than 1.0mm or tools, wires or foreign objects in diameter and thickness greater than 1.0mm prevention and contacting with the LED light and internal parts IP4-
5 completely prevent intrusion of foreign objects. the amount of intrusion of dust will not affect the normal operation of the lamp despite it can not completely prevent dust intrusion IP5-
6 completely prevent intrusion of foreign objects, and can completely prevent dust intrusion IP6-