This set includes two high-power WT21W 4527 LED bulbs provide bright 6000K xenon white light at 3600LM. Designed as a direct plug-and-play replacement for WT21W, WTY21W, and 4527 halogen bulbs, they feature non-polarity and no radio interference. Each bulb offers 1800LM brightness, is energy-efficient at 7W, and delivers three times the brightness with only 1/5 of the power consumption. With an IP65 weatherproof and shockproof rating, these durable bulbs last up to 20,000 hours at 25°C. Compatible with 2021-2024 F150, F250, Bronco, and Maverick.