Oh your not in bad shape at all.I have a Lux app on my phone that reads about 15K maybe any inch from the light (with diffuser). Even if it's not 100% accurate, I would expect it to work for comparison purposes from old light to new, so I might be overly worried about the brightness. All of my frags have come from brightly lit grow out tanks that also contained SPS.
So I might not actually be in bad shape. But the trick will be dialing down the LEDs to appropriate levels. I found this post and was thinking about just copying the LPS settings to start: https://www.nano-reef.com/forums/topic/367284-nanobox-how-to-bluefish-tideduoquad-series/.
Fwiw the meter and phone work differently without getting technical it's a lot less than 100%. A lot. But I'm glad you looked. That's smart.
Yes use the template Not that it's that accurate, but also look at the meter. Both will help.
And basicly start low and go up. Slowly.
And yup with PC the Lux conversion is lower like 45 to 55. So yes about 200 par.
Your hands on. Some folks not kill the coral and ask for help.I'm like, 67% self-helping...
Does the new led not have a dimmer and controller?