1142 Led Miniature Bulb 12v non polarity. Single filament. Up to 650 Lumen output. BA15D base has 2 bayonets the same height (even). The base is 15 mm diameter. The led's are optically aligned with the reflector for maximum light output. CE and Rohs listed. Up to 30,000 hours life. Comparable to a 35 to 45 Watt incandescent light bulb. Since this bulb is single filament means only its full bright and off. Works in both positive ground and negative ground 12 volt vehicles. Available in white 6000k, warm white 3000k, red, green, blue and yellow/amber. The maximum overall length MOL is 1.944 inches. The maximum diameter is .741 inches. Up to 500mA@12 Volt. Up to 6 LED Watts.