There are two main problems associated with the flash fill cameras. Nevertheless reflection and shadows. So, for these reasons, reduced power works extremely well in the flash. At full power, the captured image appears bursty from where the light is reflected too strongly off the eyes and other shiny sites. Also, black Lumify X9 shadows appear in the captured image due to strong thumb. So, it is better to use a weak flash which will solve the above problem. Read more ==> http://healthytipweb.com/lumify-x9/