This product is not assembled in a standard socket for the two small tabs present on the base are shifted as in the case of a two-filament bulb 21/5 Watt while this product is intended to replace a single filament bulb 21 watt bulb type bulb or flashing brake light. I bought this to replace a light bulb 12 volt 21 watts with a view "daytime running lights" of my vehicle, Unfortunately that does not rise ...
