Check the listing for details. Warm White 3mm 12v LED Cubes for GM Dash Bulbs Switches Built In Resistor 20 Qty. Condition: New. Listed at 13.37 USD. 3mm Warm White LED cubes for 6 volt to 12 volt projects, 20 count. These work great for GM dash bulb conversions and railroad projects because of their voltage range and they require no resistors. The resistors are built-in. If your dash switches gave a blue filter screen printed on the face our warm white LEDs will appear white, not light blue. LED Cubes spread light in all directions compared to round LEDs where you do not achieve complete 360 degree coverage. The short bent leg is always negative and they can be tested by with a 9 volt battery. 3mm work best in small switches as 5mm can obstruct switch functions. We also have these in 5mm. Our eBay store: https://www.ebay.com/str/gmgaugerepair GM Gauge Repair - Onalaska Wisconsin - Since 2010