... it is good for heat dissipation; (3)Adopting high power LED,special circuitry,and less heat emitting,high luminance,long lifetime ... :T10 2.Socket:WG 3.Led qty:1pcs 4.LED specification:high power 1W(2pcs 24MIL chip LED) 5.Color:Red,Yellow,Green ... : By Anti- electrstatic polybag or Cardboard Usage: car width-indicating light,top reading light,signal light,trunk boot light ,auto door light ect.