I purchased a replacement balast for a circular, double bulb (12 inch and 16 inch, 32 watt and 40 watt) fixture. The old one is a 120 V, 60 HZ, 0.6 A. The new one is a 120V, 60 HZ, 1.1A (outdoor). Is the new one compatible?

Does the label on the ballast list the type of lamp(s) you have? If so your all set, if not then the ballast must list that lamp you have.