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10X Brightness: These 7444NA led bulbs come with 48 pcs SMD 3030 LED chips, luminance: 40000LM, Color temperature: 2700K amber, Input voltage: DC 9-16V, Power: 36W, 10 times brighter than the halogen bulb of 2015-2019 f150. CANBUS issue resolved: The 7443na LED bulb has a built-in decoding resistor, with the same power as the original halogen bulb, and will not flicker or error codes. Directly replace the stock bulb of 2017-2022 F250 F350 super duty. Super strong heat dissipation: Aircraft grade 6063 aluminum body and 20000 RPM high-speed cooling fan accelerated heat dissipation efficiency. Wide voltage & constant current provide up to 50000 hours lifespan. Universal size: These LED bulbs are replaced for 7443, 7443NA, 7444NA, WY21W. Please check your owner manual or the stock bulb to confirm the correct model you need before placing the order. Dual function: These 7444NA LED bulbs are used as front turn signal lights / parking light / DRL. (If the vehicle is originally equipped with parking lights and DRL, When the turn signal lens of the vehicle is transparent, the parking lights can only display white light.)