1997–2014 Ford F-150 / F-250 / F-350 LED Front Turn Signal Replacement Bulbs For 3X Front Visibility | 3157 Amber, Built-in Resistor, No Hyperflash | 300% Brighter 1200LM (PAIR)

- Sunlight glare, rain, and fog reduce signal contrast. 1200-lumen LED output improves visibility, helping oncoming and adjacent drivers react faster as compared to ~300–400 lumens Halogen bulbs' output. - 54 SMD LEDs produce 1200 lumens across a 360° beam angle, ensuring visibility from front and side angles. This improves lane-change signalling, intersection awareness, and driving safety. - Dual-intensity circuit supports low-output DRL and high-output turn signal modes, switching instantly for clear signal separation and consistent operation without flicker or overlap. - LED bulbs draw lower current than halogen bulbs, triggering rapid blinking. Built-in resistor simulates factory load (~60–120 flashes/min), restoring correct flash rate without external resistors. - Excess heat reduces LED efficiency and lifespan. The fan + metal heatsink system regulates temperature, maintaining stable brightness and extending lifespan up to 10× longer than halogen bulbs. - Designed in the USA and built with Japanese components, ensuring durability and precision. Improved thermal and electrical stability delivers consistent 1200-lumen output and long-term reliability. Read Underground Lighting Turn signal light for Ford 150 and make an informed decision! Don't forget to explore our LED switchback turn signals & turn signal bulbs