This 60" Photogenic Eclipse Plus white, flat-panel umbrella with silver lining has an extra white panel added during construction. The result is the elimination of the reflection of the metal frame of the umbrella in the eyes of your subject, or on highly reflective surfaces, such as chrome or brass.
The PLUS cover is a removable black with a bonded silver lining designed to produce an extra stop of light. This produces more reflected soft-light, allowing placement slightly farther from your subject.
This size is perfect for portraits of small groups of people, and medium sized product set ups.
Softens and broadens the light output of any strobe or lower wattage constant light.
A silver umbrella will add specular highlights -- a little bit more "snap", than a white umbrella.
It may add 1/2 to 1 f/stop of light output, depending on the light source used.