...so that it can turn on the flash. As for network functions, it's probably so it can either spy or serve up ads, so I'd pass on that one.
I did find one that doesn't require unnecessary permissions from Motorola:
https://play.google.com/store/apps/details?id=com.motorola.dlight&feature=search_result#?t=W251bGwsMSwyLDEsImNvbS5tb3Rvcm9sYS5kbGlnaHQiXQ..
Very simple and does not spy on you.