BA15S LED Bulb works in positive or negative ground vehicles. Single filament lamp. Operates 8 volts non polarity. Super bright led lamp using the latest high power 3030 SMD led. Each 3030 SMD can emit up to 30 Lumen output. Up to 400 Lumen output. Up to 31 CP candle power. Super low profile to fit the small cowl lights, indicator, taillight. Viewing angle is 120 degrees. Comparable to a 25 to 30 watt halogen light bulb. Available in White 6000K, Warm White 3000K, Red 625 nm and Yellow Yellow 594 nm. Extremely long life up to 30,000 hours. Compatible with early vintage cars, trucks and motorcycles. Dimmable with a variable voltage supply such as your dashboard dimmer. Single Contact Bayonet where the bayonets are parallel to each other with one contact at the bottom. Compatible with the C6 Filament shape. The maximum overall length M.O.L. is .888 inches. The maximum bulb diameter is .748 inches. The base is 15mm with a single contact BA15S base. Bulb uses about 130mA @ 8 Volts. Uses up to 1 Watt at 8 Volts.