1156 1156 BA15D 4 Watt LED Bulb. Works either positive ground or negative ground no polarity. Comparable to a 35 watt incandescent automotive bulb. Vibration proof, glass lens, just like a normal bulb, but it is long life CREE 4 watt led chip. Up to 400 Lumen output. 12.8 VDC @ .224 Amps = 2.56 watts. Not Dimmable. A very nice "old fashion" looking bulb perfect for those who want to switch to LEDs but like the "old fashion" look. 120 Degree viewing angle. Rohs listed. CE certified. Long life up to 30,000 hours. Comparable to 35 to 45 watt incandescent bulb.