Hi all, just a quick question regards my lighting, one of the 3 strip light dimmable led is staying on a sim flickering state when turned off, do these need a 12v to lower to stop this happening. It’s been playing up recently and already had a switch changed. It stayed on full power brightness last I used it with the button not responding. Now back to dim light if not unconnected from junction box!! I’ve pulled cables out from behind kitchen unit for your veiwing. Please Help.