The 12V and 24V tunable white CCT color temperature led strip lights cutting lengths of the positive are the same, 12V RGB led strips and 24V RGB led strips led quantity per meter are different, and the cutting lengths are also different.
The cutting length of 24V and 12V led strip lights is not multiplied, it is determined by the internal circuit diagram design of the PCB (Print Circult Board )
The chipset on the COB light strip are small and dense, and the number of led chip is not easy to count, so it is good to cut according to the cut position marked.