FORMULA FOR FIGURING AMPS:

WATTS/VOLTS = AMPS

Ex: 575 Watts / 120 Volts = 4.8 Amps (Opti Par Amps)

Because electrical currents can fluxuate, only run 3 opti par lights on a 20 amp circuit.

That way you will not be likely to blow the breaker on the circuit.