To be honest, you don't even need switchable spectrum. If you're going to have a perpetual auto grow, you only need a veg and flower light (or two full spectrums). If you use switchable in veg, you'll be paying for LEDs you're not using.
I grow 2 autos in a 2x4x4' tall tent. I use 2 135w (85w actual) UFOs. Both are so-called full spectrum (red/blue). They produce compact plants, which is good for my short tent. I'd like to use 180w (125w actual), but I don't feel I have enough height to maintain an appropriate distance between the LED and plant. I have a veg-only spectrum in that size light. I used it once in that tent and the plant was a *monster*.
When I use up all my photo seeds I think I'll do a perpetual grow in my 4x4x7' tent. 5 plants, one coming due for harvest every 3 weeks. If I do that, I'll do 4 lights to cover a 2x2' area each.
So, for autos grown like this, I don't think switchable makes sense. Maybe the "Old Model" lights would be a better choice for you? Save a little money by not paying for a switch function you don't need?