The AutoGlow S1 Series W21/5W (7443) LED brake bulbs combine advanced LED technology with dual-filament design for superior brake and turn signal performance. These double-point bulbs activate faster than traditional halogen alternatives, giving following drivers critical extra milliseconds to react. The energy-efficient LED construction reduces electrical load on your vehicle's system while delivering brighter, more consistent illumination. Engineered for Pakistani automotive standards, they withstand temperature fluctuations and road conditions with exceptional durability. Backed by a 6-month warranty, these bulbs represent a smart upgrade for drivers prioritizing safety and longevity.