How To Make An Eyes Blink For Morphs?

I Try To Make An Eyes Blink Script That Doesn't Work When The Morph Is In Workspace, But Work In Lighting If And Only When A Player Successfully Choose A Morph. Can You Help Me?

Here Is The Script That I Need Help With:

print("light loaded")

local light = script.Parent

while true do

    light.Transparency = 0

    wait(.15) 

    light.Transparency = 1

    wait(1.8) 

end