Please use this fittings guide to make sure your purchase the correct bulbs.
B22, E14, E27 are normally found in the home. E14 small edison screws are 14mm diameter (SES), E27 edison screws are 27mm diameter (ES), B22 bayonet bulbs are 22mm diameter and with two pins
GU10 and MR16 spotlights. The GU10 has a bevel around the base. The MR16 has 2 thin pins at the base.
G9 miniature capsule lamps are for 240v mains use and have 2 rounded pins
GR10Q 2D use 4 pins and are normally used for emergency lighting.