I bought the lights a little while ago, although there were some comments that they are not defective waterproof and therefore prone to rust and fast. Since it is solar lights with LEDs, you'll never have eigenltich at the inner workings. Therefore densities it simply from a thin strip of silicone or acrylic from the tube. It lasts longer then.
Where the light is also more decorative and reminiscent of a candle and flackerende also significantly darker than that of a candle. I recommend more of a use in a weather-protected area.