Light flash

Hi it me Byron Stewart i me full Deaf i need want know how make for Light turn on and off or Siren or any like start slow dark to brighter and brighter to dark know what i mean i need want know how make that i need i tried look for that how make

Hi it me Byron Stewart i me full Deaf i need want know how make for Light turn on and off or Siren or any like start slow dark to brighter and brighter to dark know what i mean i need want know how make that i need i tried look for that how make

I think this will help:
http://wiki.blender.org/index.php/Doc:Manual/Animation/Basic/Tools/Ipo_Types#Animating_Lamps