low amp 12volt relay, what to use?

I will be using a ground -12v signal to switch the low +12v power relay for my LED penny lights for the brakes (3.4watts @12v). I am using penny lights for my brakes. I have -12v switched at the brake lever and need to switch the +12v into the light as the running light and brake light share -12v. I need to decide what relay to use small as possible.

Perhaps this will be useful:
How To Wire a 12V Brake Light and Turn Signals

yes that opto relay would work great. I will order a couple and test.

a company I formally did lots of business with:
http://www.futurlec.com/RelDip.shtml
most if not all of these relay types plug into standard dip sockets and are small, capable and cheap.

wow cheap and great selection.