Two things, Craig. You want enough light to have a certain ambiance and enough lighting to see what you are doing or do you just need light? In an outdoor situation (learn this from dealing w those curvy hip designers)you want light to bounce off trees and shrubs to light up areas and draw attention to them with just enough lights to fill those dark spots. Path ways should have enough light to make it inviting. A mixture of spot and flood lights will be needed.
What fixtures do you have there now? If its just a couple of exterior light bulbs, then any LED light weill do. Try to get a 2700K or no more then 3000k bulb. Any higher then that, the light will be white like an office. It look horrible. If you are to redo the lighting, this is the place I buy from.
https://www.voltlighting.com/?gclid=EAIaIQobChMI97P0_KaU2QIVxIl-Ch3PjwRJEAAYASAAEgI_v_D_BwE
They make a professional grade light but not a professional price. Solid product unlike the plastic or pot metal Malibu lights at Home Depot