Connectors for smart windows

A method of fabricating an insulated glass unit, the method comprising:

• (i) registering a pre-wired spacer to a first lite of the insulated glass unit, the pre-wired spacer comprising (a) one or more wires emanating from the pre-wired spacer and (b) a connector in electrical communication with the one or more wires, the one or more wires configured to supply electricity to an optical device disposed on the first lite;
• (ii) registering a second lite with the pre-wired spacer and the first lite;
• and
• (iii) affixing the pre-wired spacer to the first and second lites.

An insulated glass unit, comprising:

• a first lite comprising an optical device;
• a second lite;
• and
• a pre-wired spacer between the first lite and the second lite, the pre-wired spacer comprising (a) one or more wires configured to supply electricity to the optical device, the one or more wires emanating from a body of the pre-wired spacer and (b) a connector in electrical communication with the one or more wires.