Are you referring to Tiny Flashlight + LED?
That one works for everyone. If it's not working for you, I'd suggest uninstalling and reinstalling the app.
You can put the widget right on the home screen, where it shall stay until the great efpophis works his magic one day.
Fascinate History: Stock, Stock Debloated with TB, SC3 w/ stock kernel, SC3 w/ Lean Kernel, SC3 w/ KGB, TSM Res w/ KGB, CM7 w/ Glitch V13.1, AOKP m4, b29, b30, Gummy 1.0, AOKP w/Glitch b32, b34, m5 DEVIOUS, b40 DEVIOUS, m6 DEVIOUS w/Devil, CM10 nightlies, BAKED JB