iJDMTOY (2) Universal 4-Step Sequential Dynamic Chase Flash Module Box For Car Front or Rear Turn Signal Light Retrofit Use 2 pieces for both driver side and passenger side Input: 12V DC, Output: 12V DC Four sequential outputs (each lasts about 0.2 seconds, with a complete rotation of 0.8 seconds for each turn signal blink) For demostration please visit Youtube, search t9LfN9oAeIY This is an iJDMTOY Trademark Brand product, exclusively available at iJDMTOY