Does this come with a light bulb?

The visor has a lighted mirror feature, but bulb inclusion is not confirmed — check the package contents on arrival. If not included, you'll need a standard automotive vanity light bulb to complete the install.

Will this work on either side of the car?

Sun visors are typically driver or passenger specific due to mirror placement and hinge angle. Confirm which side you need before purchasing — installing on the wrong side will not function correctly.

Do I need to disconnect anything to swap out my old visor?

Older visors usually clip onto the mounting rod and pull straight out. The new visor clips back in the same way — no tools or wiring work required. If your visor has wiring for the light, disconnect the plug before removal and reconnect on the new one.