We use LED lighting which draws very little power, typically under 4 AMP’s even for large signs. Our power supplies are versatile and can work with inputs from 100VAC to 240VAC.
We typically leave the back of the sign frame exposed which allows for versatility in moving the sign to other cranes in the future. We recommend having the riggers install the sign with their hardware.
Although most dealers and manufacturers have allotted 32 S.F. of surface area, this should be confirmed with your dealer. If there are existing manufacturer signs, those can often be covered, adding that surface area to your sign.