T20 LED Bulbs — 7440 & 7443 Replacement for Turn Signals & Brake Lights

The T20 LED bulb series covers both the 7440 (W21W, single filament) and 7443 (W21/5W, dual filament) wedge base configurations — among the most commonly required bulb types for modern European and Asian vehicle turn signals, brake lights, and rear fog lights.

Zhishan's T20 LED bulbs are engineered with load resistor compatibility in mind, reducing the risk of hyperflashing in vehicles with LED malfunction detection systems. Amber/yellow versions are purpose-built for turn signal compliance with global traffic regulations.

Key Specifications:

- Base Types: W21W (7440) / W21/5W (7443)

- Input Voltage: 12VDC / 24VDC

- Available Colors: Amber/Yellow, White, Red

- Anti-hyperflash design available

- Life Span: 30,000+ hours

- Certifications: CE, RoHS

Suitable for: rear turn signals, brake lights, rear fog lights, reverse lights. Contact us for bulk order pricing and OEM packaging options.