AmazonBasics B07RS44KQN Guide De Démarrage page 8

Symbols Explanation
This symbol stands for "Conformité
Européenne", which means
"Conformity with EU-directives".
With the CE-marking the
manufacturer confirms that this
product complies with applicable
European directives and
regulations.
Direct current (DC).
Protected against splashing water
IPX4
from any direction. Do not immerse
in water.
8