If I recall fromt he 90s episode, the episode with the plants, it was powerful enough to destroy several monster plants. I'd say it is about equal, but 2015's version is more reliable where as 90s tends to fail for some reason.
I thought about it some and this attack would be amazing IRL. Because getting a source of light to hit and hurt physically like a light punch would be a great scientific discovery.
Oh, she inspired me.... Pink... Sugar... Heart.... BLASTER!!! (one explosion later) Oh, I missed, (there is a nuclear mushroom in the distance) Tee-hee. (ノ≧ڡ≦)