NO as they are 12V ac halogens fed from (centralised?) transformer(s). MR16 bases - 16mm between the pins or maybe MR11 (11 mm spacing), although less likely imho.
MR16 lamps are usually 50mm diameter overall. MR11 35mm diameter.
GU10 (twisty bayonet, your describe) are 240 V ac and they...