Most used for replacing G4 halogen down light bulbs and G4 cabinet light bulbs. Useful for a wide range of applications, including boats, marine, caravan lighting.
You are purchasing single piece of LED G4 Bulb, the term of 6-SMD only means the quantity of LED chips on its circuit board.
This G4 is only uesed in application environment with 12V DC. If you want to install it in your home environment, you need a transformer from 100-240V AC into 12V DC.