If you cast a spell with a bonus action, you cannot cast a spell with a duration of one action (PHB, p. 202):
A spell with a bonus action is particularly quick. You must use a bonus action on your turn to cast the spell if you have not yet taken a bonus action that turn. You cannot cast another spell in the same turn, except for a cantrip with a cast time of 1 action
Does this apply to continuous spells that trigger an action after being cast?
A beam of brilliant light flashes from your hand in a 5 foot wide, 60 foot long line. Each creature in the row must make a constitutional save. If a turn fails, a creature suffers 6d8 radiation damage and is blinded until your next turn. If saved successfully, it takes half the damage and is not blinded by this spell. Undead and oodles have a disadvantage with this save.
You can create a new radiation line as your act every turn until the spell ends.
For a long time, a hint of brilliant radiance shines in your hand. It emits bright light within a 30 foot radius and dims the light for another 30 feet. That light is sunlight.
A beam of crackling blue energy shoots at a creature within range, creating an ongoing arc between you and the target. Perform a ranged attack on this creature. When hit, the target takes 1d12 lightning damage, and you can use each turn for the duration of your hit action to automatically deal 1d12 lightning damage to the target
Am I wrong if I interpret this to allow a spell to be used as a bonus action in the same turn as the actions provided by those spells?