Transformer w/ Photo Eye, 45-watt for Halogen and LED LightsProduct Code: EPT45
This 45 watt transformer has screw type connectors for halogen lights and a three way splitter with quick connects for LED lights. Also has a photo eye for automatic on at dusk with four, six or eight hour settings. 3 year warranty!
To size the transformer needed, add up the wattage of each light you are going to use and make sure the transformer is rated at or above that. For example, if you were going to use 4 each 20 watt lights, that adds up to 80 watts, so a 100 watt transformer would be a good choice.