I think I actually posted a few responses in your thread about these lights, but I don't mind rehashing things.
I'm very happy with my A350s. I have 2 on my 120 and one on my Solana. I'm using the narrow version on both tanks. There is a little spill against the wall, but most of the light is in the tank. It's no obnoxious with the lights off. As for wanting to use a controller, I have a controller on my AI Nano that's over my 6g Edge and, while it's cool to have step up/down lighting, it's not all that great. Because the A350s are $250, it was a no brainer for me to get them over the A360 line. Even on my 120g, balancing the two lights is really easy. The fish don't have a problem with the instant off/on timer. I can't really see a benefit of it aside from the cool factor. I've never used or seen the A160 or A150 in person, so I can't comment on the difference. Since these lights are adjustable, I'd go bigger to be more future proofed. Your stocking goals may change or you may want more intensity down low one day. You can always turn lights down, but you can't get extra light.
Any way you go, I'm very happy with my Kessil lighting. My only complaint, and it's not much of one, is the reds aren't as bright as the Radions or Hydras. I prefer the overall look of the Kessils more, though. I added the supplement lighting on the 120g (seen in the pic you quoted) to get a little more light fill in the tank. LEDs are very directional and leave a good bit of stark shading under overhangs. I've noticed that T5s and MH don't do it so bad, so I added some T5s to my Kessils. I'm hoping that I'll be able to squeeze a little more red out too, but that's just a bonus. I'm not really itching to do this in the Solana because the open scape makes it less affected by the shadows.
I'm very happy with my A350s. I have 2 on my 120 and one on my Solana. I'm using the narrow version on both tanks. There is a little spill against the wall, but most of the light is in the tank. It's no obnoxious with the lights off. As for wanting to use a controller, I have a controller on my AI Nano that's over my 6g Edge and, while it's cool to have step up/down lighting, it's not all that great. Because the A350s are $250, it was a no brainer for me to get them over the A360 line. Even on my 120g, balancing the two lights is really easy. The fish don't have a problem with the instant off/on timer. I can't really see a benefit of it aside from the cool factor. I've never used or seen the A160 or A150 in person, so I can't comment on the difference. Since these lights are adjustable, I'd go bigger to be more future proofed. Your stocking goals may change or you may want more intensity down low one day. You can always turn lights down, but you can't get extra light.
Any way you go, I'm very happy with my Kessil lighting. My only complaint, and it's not much of one, is the reds aren't as bright as the Radions or Hydras. I prefer the overall look of the Kessils more, though. I added the supplement lighting on the 120g (seen in the pic you quoted) to get a little more light fill in the tank. LEDs are very directional and leave a good bit of stark shading under overhangs. I've noticed that T5s and MH don't do it so bad, so I added some T5s to my Kessils. I'm hoping that I'll be able to squeeze a little more red out too, but that's just a bonus. I'm not really itching to do this in the Solana because the open scape makes it less affected by the shadows.