Can DALI be run with mains?

Could you please clarify if the DALI system is capable of operating solely on mains power, or does it require any additional power sources or components to function properly? I'm interested in understanding if it's a standalone solution that can be easily integrated into existing electrical systems, or if there are any specific installation requirements that need to be considered. Additionally, are there any potential safety concerns or limitations associated with running DALI on mains power?