I might be posting a lot things, But each one is is different and has something new. I will take a break for a while.
This is a comparison of 4 LED , All powered by USB.
The first is the Drok mini USB LED light. Photo name "IMGE5003.JPG". Here's an Amazon link:
http://www.amazon.com/dp/B00TMYHM2E/ref=sr_ph?ie=UTF8&qid=1456970430&sr=1&keywords=drok+usb+led+lightThe second photo is the IKEA Warm white USB Goose-Neck LED light. Photo name "IMGE5002.JPG".
The third is a Generic Goose-Neck 5mm LED array USB light. Photo name "IMGE5001.JPG".
All of the lights were high up, Diffused by a tissue.