LED Headlight 12 volt non polarity either positive ground or negative ground chassis. The base is BA15S, which has parallel bayonets same height and a single contact in a 15mm base. Long life up to 30,000 hours. Up to 650 Lumen output. CE and Rohs listed. Dim-able using a variable voltage supply. Available in white 6000k and warm white 3000k. Great for vintage and classic vehicles, motorcycles and trucks.