I ordered a Twinstar 600EA from Aqua Forest Aquarium in San Francisco. It showed in-stock but the next day I got an email saying that they were out. I called them and decided to move up to the 600S. Unfortunately I mistakenly ordered the 600SC. I say mistakenly because no one should consider that mounting style without understanding what you will get.
I have a 60cm(measured) Landen rimless tank with 8mm glass. The SC or rather all of the "C" style mounts have a single piece of fixed acrylic with a VERY small lip on the bottom that is supposed to hold the light in place ...in a perfect situation. If everything was manufactured perfectly and your tank exactly meets the mount dimensions ideally then any small bump will still dislodge the light into the tank. This is a terrible engineering idea. The only possible plus is that it looks cool.
In my case that little lip did not meet the inner surfaces of my 60cm tank perfectly so it put pressure on the tank sides making it a double risk.
The adjustable CA/EA/SA versions of the Twinstar are MUCH better designed and should fit any tank within even a large deviation.
I will contact AFA to see if I can exchange the light.
My other alternative would be to modify the 600SC mount to make it secure. I vaguely remember seeing a post here or on UKAPS where someone had done some very modest acrylic work to fix a similar light. Can anyone point me to that post?
Last edited by mourip; 06-18-2020 at 08:02 PM.