This one looks better than the last.
"Constant current range :0.1-12A"
Good find. So you would need to set the 'constant current output' to 900-1000mA, then simply connect your LED's in series. (Make sure you don't use too many LEDs, or the forward voltage will be too high).
In theory yes... but in practice it would be a bad idea.
Remember from before, the LEDs are all a little different.
If one of your 'lights' is actually a lower forward voltage than the other, then it will draw most of the current which could be too much. This will damage the lower forward voltage 'light' and cause the other 'light' to be dimmer. Also, if one 'light' fails, the current supply will attempt to continue shoving the same amount of current for two 'lights' into the remaining light... which would most likely kill it in short order.
So.. the option here would be to try making a 'light' with only 4 LEDs, look for a more capable current supply, or risk it and put a 5-10Ω on each light to attempt to help keep them more balanced.
Looks that easy to me.
You've taken the highest possible forward voltage (36v) and used that for you requirements calculation, and the current supply you have goes up to 80V giving you a little head room.
Current of each LED is 3.5A, which again, the supply states it can handle much higher.
I may end up ditching the 10Watt LEDs I have here and getting those as well XD