1158 6 Volt LED Bulb for both positive and negative ground vehicles and motorcycles. Up to 400 Lumen output. This bulb uses BA15D base that has two contacts and two bayonets. The bulb has two filament design. If the bulb is dim and should be bright just remove and reinsert 180 degrees. Comparable to a 25 to 35 watt incandescent bulb. Viewing angle is 120 degrees. The led lamp is dim-able using a variable voltage supply. Since the bulb is dim-able works good in the vintage and classic vehicles that the voltage is not up to 6 volts due to old wires and connections. White 6000 K, Warm White 3000 K, Red 625 nm, Green 526 nm, Blue 464 nm & Yellow 594 nm. Up to 31 candle power. Maximum overall length MOL is 1.944 inches. Maximum diameter is .741 inches. CE and Rohs listed. Please see bottom of detail page for extended warrant details. Up to 30,000 hours life. No more worries about a broken filament or glass bulb since led is solid state. The base is BA15D 15mm base with two contacts. Since the base is standard size the base should fit your socket for easy installation. Great for old classic and vintage cars that require 1158 bulb. This can be used for a 6v led brake light or turn signal lamp.