EAM Light at CERN can be accessed with the following URLs:

Production: https://eamlight.cern.ch

Test: https://testeamlight.cern.ch
 
If you don't have an EAM account, the system will automatically create one with basic access rights.
In case you would need to change your access rights please contact your local administrator (link page here) or eam.support@cern.ch