The adjustable 3-pin CF13 or EP34 is an electronic relay designed to control the flashing rate of LED turn signals in vehicles. Replace your factory relay inside your fuse box to correct your hyper flashing issues. The LED flasher relay is ideal with use of your brand new LED light bulbs or even your incandescent light bulbs. If your turn signal flashing isn't at the speed you want, turn the knob at the top of the relay flasher to adjust the flashing to your desired rate. Specifications Operating Voltage: DC 12V (11V-15V) Switch Power: 0.02A to 20A Wattage:0.1W - 150W Operating Temperature: -40°C to +80°C Material: ABS Plastic Wide range compatibility: The led turn signal relay is compatible with the most 3 pin flasher relay. NOTE: Please check the direction of the POSITIVE and NEGATIVE poles carefully to avoid buying the incorrect product. The CF-13 turn signal flasher for led lights operates at 12V, making it compatible with most vehicles' electrical systems. Its 3-pin design allows for easy installation and replacement as needed. Additionally, it features an adjustable flash rate, which enables customization to match personal preferences. CF13 blinker relay with standard 3 terminals, for motorcycle and car led turn signals. The perfect solution for turn signal hyper flashing, fast blinking, not flashing, bulb burnt out warning on the dashboard after installing LED light bulbs.