PSU-Base-M3PSUB-Electricity-Teaching-Modules-Module-3-PSU-Base-M3PSUB-b-Module-3-b-of-the-b-PSU-Base-Electricity-Teaching-Modules-b-is-a-teaching-aid-that-is-great-for-teaching-2-way-switching-such-as-at-the-top-&-bottom-of-stairs-reverse-voltage-switching-motor-spins-in-opposite-direction-buzzers-&-polarity-of-buzzers-electronic-components-such-as-resistors-by-mounting-in-the-clips-etc-br-br-The-module-
Includes::-br-br-1x-lamp-holder-with-6V-lamp-br-2x