T5HO is just a bulb type designation. It says nothing about the spectrum distribution so they can't be compared unless you have a spectral distribution graph.
I understand T5HO is a lamp designation, but it was used in context to explain the type
of florescent lightning since they are all not equal. When I said comparable I meant even spectral power.
I guess what you are saying is that all LED can be made to look like florescent lighting since that's the only way to make the plants look as vivid. Forget they are using different methods (gas, arcs..etc) of generating light which impacts the color appearance.
Why not accurate as possible color reproduction ? It you think colors are washed out then you've not seen a planted tank under natural sunlight.
I have and it's washed out
If we wanted that look I believe we would all be running halides
That is your choice to render plant color any way you wish.
Go to this thread Freshwater Natural Aquarium Documentary
and look at the red plants at the designated time under natural light. Does that wow you ?
Perfect example of what we/I refer to as being washed out, even the fishes look blah. The natural light made the plant color up (not the issue) just like an LED or Halide, but the effect is lacking (the issue).
Companies until recently have only offered a limited selection of leds which would could lead to a an unimpressive washed look do to limited spectral distribution. I think Acan lighting was the first company in 2011 that came out with multicolor led lighting. So in order to see glorious color it's necessary to have a wide gamut light source. Single fluorescent lights don't because they typically use only 3 phosphors. With led lighting you can diy tweak to make color pop as you like.
Only two fit the bill so far, multicolor led fixtures and plasma lighting.
LEDS brings some cool features to the table, but colorwise for plants it is lacking. Maybe we'll see this in the future.