Well with "true" 4K the file sizes are in the GB range (20-40GB). So that is WAY too big for most Members to download. If you are streaming you do not need to have file sizes that big.
What I do is encode 4K at around 4000mb with 1920x1080. Sometimes that can go up to 8000 mb depending on the content. So that would bring a 20 minute video down to around 800mb per clip.
Basically anything under 1 gig per clip I think is fine.
