Use your android as if it were a torch. Only touch the screen and tour phone flash light turn on.
The security report reveals that Light Switch is totally safe. OTH is the creator of this application that can be found in the Tools category. Google Play displays that the app is rated 3.2 by its users.
Download the free .apk file of Light Switch 2.0 and have a look at users' reviews on Droid Informer. This installer occupies 539 KB on disk and it runs on Android devices 3.0 and higher.