Welcome to TPT!
I'm personally just stepping into the LED world, myself, so don't have much experience to offer in regards to the specific fixtures you're considering. I'm sure some other members will be able to help you with that, though.
The three fixture combo you're considering sounds like an AWFUL lot of light to me... but then, I also know nothing of the light needs of the viv plants you're wanting.
I believe that Finnex has PAR values posted for at least most of their fixtures in their Sponsor forum here?
I know one thing you'll want to consider when comparing these fixtures is how well the light is spread from front to back of the tank. Some fixtures are designed with light spread in mind, others have all the LEDs aimed just straight down.
Something to keep in mind when trying to sift through the information about light fixtures in the aquarium world vs terrestrial world, is that in the aquarium setting we're always trying to balance out plant needs versus conditions that favor algae. Aquatic plants also do not have access to atmospheric carbon as do terrestrial plants, so that's a major factor we have to balance in when picking out light fixtures. Finding the right balance between light levels versus CO2 (to replace atmospheric carbon) versus ferts is the biggest challenge in the planted aquarium.
So in our setting, more light does not always equal better.
I suspect that the same may be true for a viv setting? Plants could be triggered by light levels to grow past the point that they have outstripped available nutrients and/or become invasive/ choke out neighboring plants...
What frogs you setting this up for?
And are you wanting to plant the aquarium portion of your viv?
I'm personally just stepping into the LED world, myself, so don't have much experience to offer in regards to the specific fixtures you're considering. I'm sure some other members will be able to help you with that, though.
The three fixture combo you're considering sounds like an AWFUL lot of light to me... but then, I also know nothing of the light needs of the viv plants you're wanting.
I believe that Finnex has PAR values posted for at least most of their fixtures in their Sponsor forum here?
I know one thing you'll want to consider when comparing these fixtures is how well the light is spread from front to back of the tank. Some fixtures are designed with light spread in mind, others have all the LEDs aimed just straight down.
Yes, anything that blocks light is a huge consideration to factor in.
Something to keep in mind when trying to sift through the information about light fixtures in the aquarium world vs terrestrial world, is that in the aquarium setting we're always trying to balance out plant needs versus conditions that favor algae. Aquatic plants also do not have access to atmospheric carbon as do terrestrial plants, so that's a major factor we have to balance in when picking out light fixtures. Finding the right balance between light levels versus CO2 (to replace atmospheric carbon) versus ferts is the biggest challenge in the planted aquarium.
So in our setting, more light does not always equal better.
I suspect that the same may be true for a viv setting? Plants could be triggered by light levels to grow past the point that they have outstripped available nutrients and/or become invasive/ choke out neighboring plants...
What frogs you setting this up for?
And are you wanting to plant the aquarium portion of your viv?