Whatisthisthing

How can I fix this so the lights don't shine out from the sides? Looking for ideas or solutions to keep the light directed where it's supposed to go.

How did I do?
bought this a year ago and had a flagstone path from our deck to the driveway+shed. overgrown by grass, super wobbly, horrible in general, and some old ugly tiles.

about 7 days on/off (about 40 total hours put in), 1000$ in materials, and i made (with wifey’s help) a 250sq ft paver patio myself. leveling is not the best but slope are away from the house, stairs and shed which is all i cared about. did not dig nearly enough at first (2-3inch 1/4 gravel base compacted on top of compacted soil) but I did not expect the excavation effort and how many humps in the soil i’d need to fight with. 🥵

Finished with nailed in paver edging, another layer of geotextile on top of it and white decorative rocks. We also had the fun surprise of finding electrical routed only 1-2 inches underground with 0 protection going to our shed😅