New Lucas Type 12V 525 Rear Tail Light Assembly. This is by far the best quality reproduction tail light we have seen! Original Lucas Tail Lights are rare and expensive, if your looking for something affordable, and of quality, then this is your ticket! Comes installed with a 12V Bulb but can accept a 6V Bulb! Backing Plate is Stainless Steel! Mounting Studs are approx 3 1/2″ apart. Just install and away you go! Fits most Triumph, BSA, Norton, AJS & Matchless models from approx 1948-1955. Can also be used for Universal purposes! Please refer to your parts catalog for proper fitment.*****Please note that this Tail Light may fit other British Motorcycles that are not listed abouve! Check your parts book!*****Made by EMGOO.E.M Part number is 53269 or 19-1011