10 Pack 168/194(T3-1/4) Twist Lock Wedge instrument Panel Dash Light Bulb Base Socket Socket Hole Diameter: 1/2" or 13mm diameter hole. Cross Reference: Replace Stock Number: W5W 147 152 158 159 161 168 184 192 193 259 280 285 447 464 501 555 558 585 655 656 657 1250 1251 1252 2450 2652 2921 2825 PC 175 2886X. Application: Replace the light with T10 base. Suitable for side markers, running lights, corner and bumper lights, license plate lights, instrument cluster, gauge bulbs, dashboard, and factory housings. Can be used in cars, motorcycles, scooters, and trucks. T10 LED bulbs are appropriate for instrument panel indicators, speedometer, tachometer, gauge cluster, check engine indicator, high beam indicator, and shifter lights. Note: If the LED does not light up, simply rotate it 180 degrees (reverse the polarity) To avoid unnecessary after-sales issues, please confirm the model details with us before placing your order. Thank you for your understanding and cooperation; we wish you all the best.