I looked into
smart GU10 LED but could not find an
app that allowed on off timer with ramp up. Maybe someone here can write an app for this?
I use 6 of these
GU10, 38° 450lm 6400k. With these
lanterns. I use one of these for
dimmers. All controlled with a time switch.
data sheet with spectral ratio.
I only run them at about half and turn them up to take pics.
They are 500mm above substrate in my 30l, 494mm long x 258mm wide x 265mm high tank. With a 38° beam angle the beam is about 340mm wide at the substrate and 170mm wide at the water surface.
There is spill into the room but it is a nice brightness and comfortable to watch tv by. You could always get
these to cut down spill.
At present it is hard to get daylight LED with beam angle less than 38°.
Have no trouble with low tech plants.