When I spoke to a friend about my new lamp, he asked me if I could make one for him too. He wanted two separate lamps(250w) for more flexibility so we came up with thick aluminum sheets. I'm not sure how the temperatures are going to develop, but if necessary I could stick c-channels on the backside.
On the other hand, the Nextlight lamps do not use c-channels either, so it should work that way.
My frame on the last shot is 600x 1150mm and will cover a 750x 1250mm area.
Yesterday I sawed them, today or tomorrow I drill maybe hundred of holes for screwing and laying the cables. I'll put the drivers in the case in the middle of the backside, together with a Sonoff Dual timer and a UVB tube will be mounted below the case and between the strips. But I still waiting for some parts like the drivers, 4 RopeRatchets and so, so it will take at least 2 or 3 weeks until they get ready.
By the way, it is a pleasure to look at your flowers. The SS is really a gem! Also the indika pheno on the old photo. No wonder she has been leading the indika charts for many years.