I wondered about this myself last week, and searched on the internet. There are scientific studies that UV is effective against coronaviruses, although the specific virus tested in the article is not this new one. It takes about an hour to deactivate most of the virus on a surface. So it will work, but it is kind of difficult to use since it damages our eyes, and so it has to be used in areas or at times where humans are not around.
The new light source acts quickly on virii floating in the air, seconds rather than minutes to achieve a kill.
https://www.nature.com/articles/s41598-018-21058-w
https://www.hepacart.com/blog/what-is-far-uv-sterilray
https://www.ushio.com/files/brochure/care222-mercury-free-far-uv-c-excimer.pdf
https://www.ushio.com/product/care222-mercury-free-far-uv-c-excimer/