10mm ba9s led indicator lamps 8 48v cml 18600m50 a 10mm diameter red led indicator that has a ba9s type base fitting and can be powered by either ac or dc voltage a wide input voltage range of 8 to 48v means that this led is suitable for a wide range of applications and also obviates the need for keeping different voltage lamps as spares cml 18600m50 ba9s led 8 48v red