You need to be very careful paralleling the transformers. If there is a small difference in output voltages, it will result in "circulating current" between the two transformers. The current will be set by the voltage difference and the circuit impedance (resistance of AC). If you have 2 volts difference, and a 2 ohm circuit impedance, you will have 1 apm of circulating current. This is lost as heat, and will reduce the lighting capacity by an equal amount.
Unless the transformers are exactly matched, I would avoid paralleling them. Instead just wire separete circuits to the lights.
paul
Unless the transformers are exactly matched, I would avoid paralleling them. Instead just wire separete circuits to the lights.
paul