I had an old lamp that didn't worked, so i decided to remake it and add an option to choose between warm and cold white color.
Step 1: prepare place for metal
Step 2: cut the metal
Step 3: prepare leds
cut warm and cold white led strips to the length of the metal, in my case it was 24,5 cm.
Step 5: connect all warm white leds strip from one side and cold white led strip from another
Step 6: it's time to dimmers
Step 7: electronics
i used this kind of dimmers:
Step 8: adding tripod mount
Result with self made case: