Partsam 10pcs Ice Blue T10 194 LED Bulbs Instrument Panel Dash Ligths with Sockets 16mm Hole Diameter T10 168 194 2823 2825 2827 W5W PC194 16mm hole 2496279 2973932 Color: Ice Blue Led Type:4-SMD-3528 Bulb socket fits a 5/8" or 16mm diameter hole.