We already had 'Conversation' on this - your Clearwater kit already comes with switch and dimmer.
Look back through your Conversations - Subject Ericas ... never mind I'll just send you a new reply so is at top of your list
It's one of the things that makes me doubt the product. A bit like fitting wheels to a tomato. Fit decent optics so they put down light where it's needed and dimming becomes moot.