LED bulbs can be found at most supermarkets, hardware stores, and specialised lighting and electrical retailers. Before heading off to the outlets, examine what kind of bulb you need to substitute. The vast majority of gentle bulbs are described by a system of sequence designations. Out there with screw and bayonet bases, which have the designations Exx and Bxx respectively. The xx refers back to the base’s diameter in millimetres. These are often used as floodlights and downlights. They are numbered by the size of the bulb’s diameter in millimetres, R80 for example. PAR38 is a common sort