Neon flex channel
I used the channel on my recent project , I was told I needed the 10mm x 10mm for the flex I bought . But as I had to use 2 separate cut lengths of flex, it meant having a separate feed cable which I needed to hide , so I bought the 10mm x 18mm , his the cable behind the flex and then pushed the flex in flush to channel . Worked perfectly. However. The 10mm x 10mm is not quite deep enough once you put screws in it . It pushes flex out a bit . And also comes with no holes . So DIY is not straight forward , but having said that im pleased with the whole outcome , ATOM lighting is pretty good at making things brighter , sorry about that