63 LED Bulb 8 to 9 Volt BA15S Base. Designed for 8 Volt Fords. Works both positive ground or negative ground. Up to 18 CP or 240 Lumen output. 120 degree viewing angle. Long life up to 30,000 hours. Available in White 6000K, Warm White 3000K, Red, Green, Blue and Yellow. Single Contact, Single Filament BA15S. The bayonets are even and has one contact and the bottom. The base diameter is 15mm. The bulb is made very low profile to work when used in old sockets that classic and vintage cars have. The bulb is dimmable. Comparable to a 25 Watt incandescent bulb. The shape is G6.3.0 MSCP. The filament design is compatible with C-6. This bulb is a true 63 compatible since the board is mounted inside the ba15s base. The overall length M.O.L. is .888 inches. The maximum bulb diameter is .590 inches. CE and Rohs listed. Compatible with: GM #142303 Mazda bulb GE 63 #1133 TS67