Houston humidity kills landscape lighting at the connections, not the bulb. If your path lights flicker after rain, the splice is wet. We redo those with gel-filled connectors, set the transformer up off grade, and use LED fixtures rated for wet locations.
Uplighting live oaks in West U or The Woodlands is a different layout than a Katy parkway strip. Start with landscape lighting and we will walk the yard at dusk, not sell a kit off a truck.