1142 LED BA15D 6 Volt Positive Ground and 6 Volt Negative Ground. Up to 150 Lumen forward firing, up to 20 Lumen side firing. Available in warm white 3000K and White 6000K. Comparable to a 25 Watt halogen bulb. Approximate size is 1.57in x 1.03in. BA15D base has a single filament. The bayonets are parallel or even and two contacts on the bottom. The diameter of the base is 15 mm. 360 degree illumination excellent choice for reflectors and lens. Dimmable with a variable voltage supply such as your dashboard dimmer switch. This is a single filament led bulb. To apply power you connect ground the one contact and apply plus 6 Volt to the other contact. Comparable to a 15 to 25 Watt incandescent bulb. CE and Rohs.