How Do I Download My iPhoto Library?
I hate having my videos have to load up on my device so I no longer want to use iPhoto Library on my iPhone. How do I download my 1600 pictures and videos back to my device?
See the information below from Get help with your iCloud Photo Library - Apple Support
How do I turn off iCloud Photo Library on just one device?
To turn off iCloud Photo Library for a single iOS device, go to Settings > iCloud > Photos and turn off iCloud Photo Library.
To turn off iCloud Photo Library for a single Mac, go to System Preferences > iCloud > Options next to Photos, then deselect iCloud Photo Library.
If you have Optimize Storage turned on, you might not have all of your original photos and videos on your device. To download the original photos and videos on your iOS device, go to Settings > iCloud > Photos and select Download and Keep Originals. On your Mac, open Photos, choose Photos > Preferences, then select Download Originals to this Mac. Then you can turn iCloud Photo Library off. You can also select the photos and videos that you want to download from iCloud.com.