Be careful, your installation may have a code violation. Fluorescent luminaires are typically not allowed on 30 amp circuits. You need to verify that your lampholders are rated greater than 750 watts. NEC Section 210.23(B) states that to be used on a 30 amp circuit, a lampholder must be of the heavy-duty type. NEC Section 210.21(A) states that in order to be a heavy-duty type, a lampholder that is not of the admedium type needs to be rated not less than 750 watts and most fluorescent lampholders are not rated this high.
