Electrical question

[Coleus]

My ballast has the following spec for 54W T5HO

Lamps Operated : 2
Input watts: 108
Line current: 0.96

Both light bulbs do not light up when I turn on, both are working on another fixture. So i use my voltmeter to measure the output voltage from my ballast to the bulb.

Base on the specification, am i expecting

54/0.96 = 57 V or 54/.96/2 = 28V ?

TIA