After some research and a bit of trial and error, I found these Arlec 5W Integrated Solar Powered Sensor LED Floodlights. I installed these lights onto timber screening with some D.I.Y. creativity and there is no ongoing cost.
Created a small platform to attach the light to my screening panel.
Full brightness when the sensor is activated. It drops down to a lower-level light afterwards.
Placed another light on the window screen. Very impressed with the brightness.
More backyard projects
Rufaro used Matrix screen panels and Merbau decking to create this fantastic screening for a previously tired-looking fence.