Simply "Wear" one of the 4 versions of lights included. Another 4 easy-to-modify lights are included for you to customize further, if you feel the need.
Default WindLight lighting leaves harsh angles and shadows on your avatar's face (and body). Old facelights designed for the old default lighting may not be able to counteract the new effects of WindLight.
The Smashing Prims Chest Light is designed not only to beautify the face but also the body, in particular body attachments such as Bouncing Bosom Breasts (found only at Smashing Prims).
Body attachments will appear more seamless in the harsh Windlight environment.
*Skins and Tops by Smashing Prims:
In-world stores:
http://slurl.com/secondlife/Sinfro/252/185/109
http://slurl.com/secondlife/Crinkle/244/82/28
It's also available for FREE at SL Exchange - get one for yourself and send it as a gift:
http://www.slexchange.com/modules.php?name=Marketplace&file=item&ItemID=849054
Raven Ivanova
Smashing Prims