What is the brake light bulb model for Subaru XV?

[Harper]

Subaru XV brake light bulb model is 21W5W-T20 specification double filament. The brake light is the light that illuminates when the vehicle brakes, usually red, serving to warn vehicles behind. Additionally, brake lights effectively prevent rear-end collisions and reduce traffic accidents. Depending on the material used to make the brake light, they can be broadly categorized into gas brake lights and LED brake lights. Gas brake lights use materials like halogen gas. Gas brake lights are technologically mature and inexpensive but produce radiation. LED brake lights use LED materials. LED-made brake lights are radiation-free, pollution-free, and have a long service life. The method to replace the brake light bulb is: Use a flat-head screwdriver to remove the fixing clip, then pull back the bushing; turn the socket to the left to remove it; remove the old bulb and insert the new bulb. When replacing, ensure the vehicle is turned off and in a cool state to avoid skin burns. When handling the bulb, do not touch the glass part; hold the bulb base instead. The bulb glass contains gas, and touching it with hands can affect the bulb's performance and lifespan. Finger stains can cause uneven thermal expansion on the glass surface, leading to bulb breakage.