Lexus SC300 License Plate Bulb Size

The Lexus SC300 license plate component utilizes a 168 bulb size for illumination purposes across all listed vehicle applications. Data provided for the specific lighting requirements covers the period from 1992 through 2000.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	US Type	EU Type	Shop
1992-2000	168	W5W	Check Price

Bulb Specifications

Description	Type	Shop
ANSI standard (US & Canada). Miniature wedge bulb (T10). 12V, 4.9W.	168	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with W2.1x9.5d wedge base. 12V, 5W.	W5W	Check Price

Other Locations

Additional Notes

The 168 bulb is the sole license plate bulb size specified for the Lexus SC300 across all listed model years, spanning 1992-2000.
The 168 bulb follows the ANSI standard recognized in both the United States and Canada, placing it within a widely adopted North American specification framework.
It is a T10 miniature wedge-base bulb, a form factor defined by a wedge-shaped plastic base that makes direct socket insertion possible without a separate metal base or pins.
The bulb operates at 12 volts, consistent with the standard electrical system voltage found in passenger vehicles.
Its rated wattage of 4.9W places it in the low-power range typical of license plate and courtesy lighting applications, where heat output and current draw are kept minimal.
The T10 designation refers to the bulb's tubular envelope width, expressed in eighths of an inch, making the envelope approximately 10/8 of an inch wide.
Because the 168 is an ANSI-standardized type, it is physically interchangeable with other bulbs sharing the T10 wedge base, provided voltage and wattage ratings are compatible with the socket and circuit.
The uninterrupted use of the 168 across the entire 1992-2000 production span indicates a consistent license plate lamp housing design throughout that period.