Long Lasting, Super bright LEDs with 50,000 working hours. Easy installation (plug and play). Extremely low power consumption. Excellent upgrade to the yellowish stock bulbs. Depending on the years and trim packages you might not need to use all the bulbs. Certain Model and or year comes standard with LEDs from the manufactuer, this Package does not replace the OE's LEDs. If the LED does not light up, simply flip it 180 degrees (reverse the polarity).