Do the 60" bars link together or will each one require access to its own power source

we can make separate power source switch for each light bar if you need, just leave a note when you place an order.

Is it possible to 'rig' these lights to be able to plug into a wall? If so what equipment is necessary other than a 'pigtail' head?? Thanks!!

yes, you can rig these lights plug into a wall if you can provide power source. but our lights at most work with 24V.

If I buy a four pack does the control box come with four plugs to run each light and how long is the wire from the light

Hello, yeah, if you buy a four pack, the control box will come with 4 plugs to run each light. The wire from the light is about 326.5cm.