(Note: these steps are a high-level explanation. Always utilize licensed and bonded contractors for installations):
Check if the city or municipality you are installing in has code or requirements and follow as needed for the foundation design. How deep you want to make the concrete foundation depends on soil and wind conditions and how much weight you have on the pole (i.e., light fixtures, attachments, etc.). See example
After digging the hole, use the paper template (which comes with poles as a template) to drill holes in a piece of plywood. Ensure that the holes match the paper template to avoid alignment problems between the anchor bolts and the pole base plate.
There should be four holes for anchor bolts and a larger hole (PVC pipe) in the center for the conduit.
Support the plywood on top of the Sonotube (concrete form) column, ensuring it is level.
Insert anchor bolts into the plywood with a single nut and washer (allowing them to dangle), ensuring they do not fall into the concrete form.
Place rebar throughout the form and a PVC center and side pipe (for wires) into the foundation; pull wires through PVC center pipe.
Slowly begin pouring concrete, making sure to vibrate, minimizing air bubbles. Curing time will depend on ambient temperature and humidity as well as foundation size.
Place the pole on a set of sawhorses; install lights and optional accessories, this prevents going up on a ladder later to install.
Once the concrete has cured, the pole (lights and accessories attached) is ready to be lifted into position and bolted to the anchor bolts in the concrete base.
Ensure there is a nut and washer at the bottom and top of the base plate. Once again, the bottom ones are for leveling the pole as needed and the top ones for locking the pole in place (torque to specified spec).
Bring the conduit wires up from the center and pull them out of the handhole. Your electrician can make the final connections to the conduit and install the handhole cover plate.
Install the base cover in the bottom to cover over the anchor bolts and base plate.
