12 Volt non polarity #1158 dual filament bulb. Uses 30 5730 smd leds. The bulb is dim-able using a variable voltage supply such as dashboard dimmer. The leds are aligned to your reflector for the best led light output. CE and Rohs listed. Long life up to 30,000 hours. Comparable to a 27 to 37 watt incandescent lamp. Fits in the normal outline of the bulb you are replacing for easy installation of a led bulb. Up to 650 Lumen output. Works either positive ground or negative ground cars, trucks or scooters. Available in white 6000k, warm white 3000k, red, green, blue and yellow.