Lights are to be installed onto a cement pad the depth of your local frost line. The base pad should be poured cylindricaly with a width of not less than 2" larger than diameter of base. 1/2" x 12" to 18" L-Shape bolts are necessary for installation (not provided, may obtain at your local hardware store) secure four (4) of these bolts, according to the template provided. Electrical conduit containing the main electrical wire should protrude through the center of this cement pad. Connect the base of the light to the cement pad using nuts, and connect the main electrical wire to the leads extending down from the socket assembly (standard) or the ballast/socket assembly (optional). Assembly is now complete.