Wide Application: These dash lights are compatible with most T5 and T10 sockets, fitting sizes 17, 18, 37, 70, 73, 74, 79, 85, 86, 2721, PC74, PC37, PC118, 882, T10, T15, 194, 168, 158, and W5W; please verify the socket size before ordering Stable Performance: Featuring high-brightness LED chips and a reliable circuit board, these dash lights provide consistent illumination with no delay or flickering. Designed with efficient heat dissipation for low operating temperature and low power consumption, ensuring long-term stable performance Easy to Install: Plug-and-play design allows for quick and simple installation. Insert the bulb into the dashboard socket and rotate into place. If the LED does not illuminate, rotate it 180 degrees to reverse polarity and reinstall. Saves time and effort Practical Functions: Ideal for use as indicator lights in the car dashboard, including speedometer, odometer, and tachometer illumination. Also suitable for map lights, overhead lights, license plate lights, and trunk lights Color: As shown in photo Material: Plastic Package Contents: 20 x T5 lamps with lamp holders 20 x T10 lamps with lamp holders Note: This package includes only the items listed. Other accessories are not included. Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement tolerance is +/- 1-3 cm