THIS IS A VERY NICE OLD CHROME TAIL LIGHT. IT IS A 6 VOLT BUT YOU COULD CHANGE THE BULB TO 12V IF THATS WHAT YOU NEED. LIGHTS UP NICE AND BRIGHT. MADE BY THE S&M LAMP CO, LOS ANGELES. THE LIGHT MEASURES 5 ACROSS. NOT SURE WHAT THIS LIGHT CAME OFF OF BUT WOULD…