Notification light

[damo]

Hi,
My notification light flashes when I get a facebook notification, but not a new mail via gmail. Without installing an app like Lightflow, can I get a notification for a new email in gmail?

 

[damo]

Which mobile are you using?I tried Lightflow on my NEXUS 5.But even then im not able to get Notification light consistantly.Sometimes it does and sometimes i doesnt.

G3 European version. I just wondered why the notification light works for some apps and not others