Solar street lamp protection level IP65 What does it mean?

Dust class (the first I indicates)

0: No protection
1: Prevent the invasion of large solids
2: Prevent the invasion of medium sized solids
3: Prevent small solids from entering
4: Prevent solids larger than 1mm from entering
5: Prevent harmful dust accumulation
6: Completely prevent dust from entering

Waterproof rating (second P)

0: No protection
1: Water drops into the shell has no effect
2: When the shell is tilted to 15 degrees, the water drop into the shell has no effect
3: Water or rain from 60 degrees corner to the shell has no effect
4: Liquid poured into the shell from any direction has no harmful effect
5: Rinse with water without any harm
6: Can be used in the cabin environment
7: Can be soaked in a short time (1m)
8: Immersed in water for a long time under a certain pressure

Therefore, the solar street lamp IP65 represents that the lamp completely prevents the dust from entering, and the water is washed without any harm.