[Fit Bulb Size] - Suitable for many T10 wedge type sockets, compatible with 194, W5W, 168, 2825, 175, 161, 921, W5WLL, 194K, 194A, 194NA, 194LL, 158, W10W, 147, 152, 159, 161, 184, 192, 193, 259, 280, 285, 447, 555, A558, 585, 655, 656, 657, 1250, 1251, 1252, 2450, 2652, 2921 and more; Please check the size of your socket carefully before ordering. [Fit Car Light Position] - The 194 LED bulb can be used for dome light, map light, licenses plate light, instrument dashboard lights, interior door light, side marker light, ash tray light, glove box light, check engine light, center high mount stop light, backup reverse light, parking light, brake indicator light and so on. [Quality materials] - Built-in intelligent constant current IC driver, whole aluminum body for excellent heat dissipation, low power consumption, longer lifespan and immediate on/off response time. [Easy to install] - Installation steps are the same as installing the old bulb, just take out the old bulb directly and put in the new bulb, plug and play.IP67 waterproof rating, suitable for all kinds of weather conditions. (Note: If it doesn’t light up, please flip it 180 degrees then it should light up.) [CAN-Bus Error Free] - In order to ensure the normal operation and safe use of the bulb, please make sure voltage of your vehicle is 12V DC. Specifications: Working Voltage: 12V DC Wattage: 1.5W Length: 0.9 Inches Diameter: 0.35 Inches Polarity sensitive: No Lifespan: 30,000+ Working Hours