Diode Dynamics Rear Turn/Tail Light LEDs for 2018-2020 Ford F-150 (four) - XP80Features Modern LED appearance with instant on and off Direct replacement for Ford F 150 tail rear turn bulbs Plug and play, no modification with factory 3157 bulb size Multiple brightness levels available Overview Instant On and Off. The factory incandescent tail lights and rear turn signals on the Ford F 150 illuminate in a slow glow, taking a moment to turn off and on. A modern LED upgrade provides instant response, which can alert other drivers on