taxi advertising light box strong magnet bottom,no install LED lights,12V DC power for advertising,ads,any car customized w HF49-1 taxi led advertisingFeatures of taxi light:1.Big size area on left and right sides for advertising,and get a considerable feedback for you.durable,modern design,competitive price2. installation: 2pcs big magnets at bottom,steady enough.just put it onto car roof,no ...