the diffuser is clear enough to pass most of the lights

I love the diffuser because it takes some is the harshness off without making them too dim

If you happen to have an ingersol air powered (auto) body saw with a fine blade it will make a serviceable cut requiring minor cleanup with minimal effort, but a harbor freight air body saw has more blade wobble and will shatter the diffuser.

Good straightened extrusions, well fitting diffusers with peel off installation scratch protector, well fitting end caps

Muzata Extension Connectors for U-Shape Aluminum LED Channel