IP20: Indicates that the strip light has some protection from dust but no water resistance.
IP64: Indicates that the strip light is protected against vertically falling drops of water but may not be protected against water sprayed from other directions.
IP65: Indicates that the strip light is protected against water splashes from any direction, making it suitable for outdoor use.
IP68: Indicates that the strip light can withstand continuous immersion in water, making it suitable for underwater applications.