I am in the process digging a trench to burry some electric cable to a shed at the back of my yard. I figured "while I'm at it" I'd like to burry some low voltage cable for some landscape lighting that I plan to put in the back of my yard some day. I want to uplight some trees. The furthest fixture will be about 150 feet from the house. There will be 3 or 4 fixtures. Can someone recomend a cable size and a good fixture to use to uplight large trees?