Yes, we can find MR16 LED lamps in the market work with such as 220V to 240V BUT please dont use it if safety is your concern...  Commonly found right and safe-to-use MR16 lamps either is LED or halogen are work with 12V (AC and/or DC).  This is due to the pins design, creepage and clearance are not means for voltage more than 50V.  Please choose GU10 or JDR(E27 lamp base) lamps type if you want to use direct high voltage.