LED Flash Light is a very simple app which instantly turns your device into a flashlight.

Features(Can be turned on/off in settings):
No Ads
Vibration
Toggle flash light home screen shortcut
Notification
Flash LED at maximum
Runs if screen is locked
Runs if app is minimized
Audio Effects on Start/Stop
Low memory usage(around 4 MB)
Automatic timer to stop flashlight
Can be started/stopped using shortcut(Power + volume key)
Material design

It's completely free. Enjoy!