The kessil a80 and the coralife led have similar power (15 watts and around 30-40 par) but that is not the only consideration. Kessil doesn’t publish their par ratings, and they claim that the lights spectrum is more important. That’s debatable, but what’s not is the many testimonials of reef keepers who have used kessil with great success. I’m one of them. Had an a80 over my biocube 29 for several months and kept palythoas and a hammercoral alive and happy. They were even happier when I upgraded to a kessil a160we. That being said I don’t know much about the spectrum of the coralife led. But I have never once heard of someone using one to keep coral. Not saying it can’t, just have never heard mention of it’s success or failures.
https://www.reef2reef.com/threads/kessil-a80-tuna-blue-par.458438/