If bulbs are lighting in your head, click on the title and leave what they say below.

I start with what you do when writing

Your name isn't in the lighting

Yet inviting you to go,

I smoke, a warning you should know

I'm information sent to ears or screens,

Or I'm the means.

'You start with picking up a pen?'
'That's how any great words are started!'
'Come here and show me!'

Riddle Answer A Signal

Riddle Explanation
I start with what you do when writing your name - to sign.

your name isn't in the lighting yet inviting you to go - traffic signals, traffic lights.

I smoke, a warning you should know - smoke signals, a warning.

I'm information sent to ears or screens, or I'm the means - in telecommunication, the information transmitted, or the variable parameter through which that information is transmitted.