How To Install Landscape Lighting Transformer
How To Install Landscape Lighting Transformer. (2) 7 watt lights x 1.25 = 17.5 watts. Install the transformer on the side of the house or a post following the directions provided by the manufacturer.

Remember that your trench should also reach your transformer. (2) 7 watt lights x 1.25 = 17.5 watts. If the transformer has a separate light meter, place it where it will get a true light reading.