Partsam 10pcs White T10 194 168 LED Light Bulb 4-SMD W/Twist Lock Sockets Holders Instrument Panel Cluster Speedometer Tachometer Gauges Lighting Lamp Direct Replacement For All T10 Wedge Type W5W W3W 147 152 158 159 161 168 184 192 193 194 259 280 285 447 464 501 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825 PC 175 2886X Dimension(Length*Width): W2.1x9.5d Wedge Type Bulbs; T3-1/4"" Miniature Wedge Base Bulb Color: White; Package Content: 10 Setsx T10 Car LED Light; Applications:Interior (Map, Dome, Cargo, Courtesy) Light, License Plate Light, Turn Signal Light, Corner Light, Side Marker Light, Tail Light,ect. If the LED does not light up, simply Rotating it 180 degrees (reverse the polarity)