cciyu 10 Pack Xenon White Car T5 5050 1SMD Wedge LED Light Bulbs 74 17 18 37 70 73 2721 For side markers, running lights, corner & bumper lights, license plate lights, instrument cluster Features: Color: White; LED Type: T5 5050 Tri-Cell SMD LED Chips; Dimension: 5mm X 18mm (W2.1x4.9D Wedge Type Bulbs) Easy installation, just plug & play.Faster on/off response time and vibration resistant.74 type(T1-3/4) 3/16 inch wide base small Wedge Base LED bulbs Cross Reference: Replace Stock Number:T5 17,18,27,37 ,57,58,70,73, 74, 79,85, 86,206,207,286,306,2721. Application: Replace the light with T5 base, such as side markers, running lights, corner & bumper lights, license plate lights, instrument cluster, gauge bulbs, dashboard and factory housings.T5 LED bulbs for instrument Panel indicators,Speedometer,tachnometer,Gauge Cluster, Check Engine indicator, Highbeam indicator, Shifter Lights,etc Please NOTE: If the LED does not light up, simply Rotating it 180 degrees (reverse the polarity)