It is normal. All standard wall switches under load will cause an arc when
making and breaking. In most cases it's small and not noticeable. If its
hissing , crackling,or sparks coming out of the switch body, then change the
switch



wrote in message
oups.com...
I am wondering if this is normal. I can see flashes of light sometimes
when I flick on various light switches around the house. It's
intermitent but most noticeable at night when there is little light in
the room. I am nervous this is going to start a fire. Spoke with the
developer they said it's normal. Any thoughts?