Diffuser Channel For Philips Hue LED light strip

Goodday beautiful Phlips-Hue people, love your product. bought a Philips Hue LED light strip but cannot find a LED diffuser strip.

I bought a led diffuser channel via Amazon but it is too small in width for the Phlips light strip. I need a differ channel with a width of a least 1.5 cm.

Can you recommend a great reliable manufacturer of diffuser channels for Phillips Hue indoor light strips?

Thx Ron