Motor Vehicle Lighting Features: Material: ABS Plastic Light Color: Yellow Size: as shown in picture Connection: Red-Positive, Black-Ground Voltage: DC 12V Universal for most motorcycles with 10mm screw holes No ERMASPEED LOGO pack:2 pcs x Motorcycle Flashing Lights Connection:Red-Positive, Black-Negative. Choose a resistance to light them with extra safety. Tip: Soft rubber and ABS plastic junction, then do not fold strongly After receiving the goods, do not rush to install it, first use a 12V DC fully charged BATTERY to test it directly, which can save you a lot of trouble and worries. (DO NOT USE FULL TEST ABOUT 12V! It is easy to damage.)Note: If some of the LED lights are off or the turn signal is not working properly. Check that your wiring is correct. (If the original Motorcycle RELAIS does not support the LED, the RELAIS must be replaced) If your motorcycle came factory with LED eye flaps, the indicators just plug and play; If not, a flasher or resistor is needed to work. Light overflow of glue is a normal phenomenon and does not affect the function of the product. Perfectionists buy carefully!