Applications: instrument lights and switches VOLTAGE: 12V TYPE: GLASS BASE BASE (PLINTH): W3X16D POWER: 21 WATT TYPE OF LIGHT: STANDARD WITH THREAD: 1 THREAD LONG LIFE: NO REINFORCED VERSION (HEAVY DUTY): NO HALOGEN: YES LENGTH: 26.80MM TEST STANDARD: ECE 37 (E4) 032C8 BLISTER PACKAGING: NO