The easiest way to move lights is to first delete them on the old bridge. That will reset the light. Then you can just do a search for lights on the second bridge and it should be found automatically.
If the light is not found, check out the following: How to connect Philips Hue lights to a Philips Hue bridge?
You would need to create your rooms and schedules again on the new bridge. There is currently no way to migrate those settings.