Collingwood LED RGBW strip

[Colin 1965]

Hi and happy Xmas to everyone. I want to install Collingwood RGBW LED strip in my kitchen. Before renovation I ran 5 core cable to each of the cupboards for lighting. I now wish to add another strip on top of the cupboards. Collingwood are saying I cannot split the 1 feed to feed above and below the cupboards. Their sales team were unable to say why definitely. I am struggling to see why this would cause an issue especially as the maximum length is only between 1-1.5M each strip.
I would appreciate anyone’s thoughts as to why this would not be possible please?

 

[cliffed]

Definitely to do with the driver..not too exceed the Max recommended.. otherwise yea should be ok to extend @ each unit.

 

[Lucien Nunes]

With constant-voltage drivers and strips you can split the driver output in as many ways as you like. The two limits to observe are the maximum current taken from the driver / controller (determined by the total length of strip connected) and the maximum current permitted to pass through the end-end bus conductors in any one strip.

With constant-current drivers and LED fixtures, the driver output cannot be split in parallel because the current may not be shared equally between the fixtures. I wonder whether they were thinking of this scenario and mis-applying it to your RGBW strips?