It's inside the pebble hidden away from view.
You can sit on these no problem.
Many differences, dearer shapes lights have USB, indoor mode, different light modes and are a different size.
We recommend 3-5days in direct sunlight in the off position. This will give the light a full base charge.
The lamp will only cycle all colours.
The Shimmer only has colour changing mode
32cm by 24cm. The Shimmer is only one size.