100w or 9w

Hello everyone

So my client has asked me to make a small installation for which I need to use a magnetic valve They had one lying around but I can’t seem to figure out how large the powersuply needs to be for this valve I will be using a DC power supply because the safety relays and some other materials wil also need DC

The label says 24v AC/DC 100/9w But does it need 100 or 9?