How many VA is the transformer?

The maximum capacity of the HUB-50 is 50 VA. The HUB-100 can handle up to 100 VA, while the SMART HUB-150 can be used for a maximum of 150 VA in lighting. You can determine the appropriate (number of) transformers by adding up all the VA values of the lighting in the yard. The VA value of each fixture can be found on the packaging and in the installation manual for that fixture.