The Daewoo Leganza brake light requires a P21/5W bulb size for proper installation and function within the rear lighting assembly. Data for the specific component covers the range from 1999 to 2002.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Daewoo Leganza uses the P21/5W bulb for its brake lights across the 1999-2002 model years.
The P21/5W is a dual-filament bulb rated at 12V with a 21W main filament and a 5W secondary filament, mounted on a BAY15d bayonet base.
The BAY15d base features offset pins, which physically prevents single-filament bulbs from being inserted in place of dual-filament ones, making incorrect substitution mechanically difficult.
The center high mount stop light on the Leganza uses the P21W bulb across the same 1999-2002 model years.
The P21W is a single-filament bulb rated at 12V and 21W, seated on a BA15s bayonet base.
The BA15s base used by the P21W has symmetrical pins, while the BAY15d base used by the P21/5W has asymmetrically offset pins, meaning these two bulb types are not interchangeable despite sharing a similar physical profile.
Both the P21/5W and P21W conform to ECE standards, a regulatory framework recognized across Europe and numerous other markets worldwide.
The dual-filament design of the P21/5W allows a single bulb to serve both a low-intensity running or position function and a high-intensity braking function within the same housing.