Amber glass that reads like crystal in daylight and lights the edge of a path after dark. Push it into the ground, and that is the entire installation.

• No wiring, no outlet, no switch — the panel charges all day and the light comes on by itself at dusk.

• Two modes: steady warm white, or a slow color change.

• Stays on all night on a full day of sun.

• Waterproof — it lives outside through the seasons.

Steps, fence posts, the edge of a bed, the dark stretch of path between the car and the door.