H4 EAD check

I am on l2 with a valid EAD.

I am planning to move to h4 EAD, do I have to be on H4 visa to apply EAD ?

Is there is any way I can move from l2 to h4 EAD?

You need to be on H4 visa status to apply for EAD and qualify for the H4 EAD Rules

Thanks kumar, even if I stamp my h4 will my l2 be valid?
It expires only on 2017?