THXtech 4x 194 168 2825 T10 5 SMD White LED Car Lights Bulb (pack of 4) Type: T10 5050 5-smd LED light bulbs Direct replacement for all T10 Wedge Type W5W, 147, 152, 158, 159, 161, 168, 184, 192, 193, 194 2825 Application: Common use for Clearance light, License Plate Light, Parking Light, Turn Signal Light, Corner Light, Side Marker Light,Tail Light, and Backup Lights If they don't light after inserting into the socket, please insert oppositely or flip the bulb horizontally to match the + and - polarity. Also, try to pull the pins on the base outwards and sideward a little in case the bulb is slightly loose in socket Attention: In case of License Plate Light Use, Please be sure to seal the cover well to protect the bulbs, Otherwise, It will be flickered or burn out by short circuit due to water/moisture penetration