Jamjar – a great solar decorative light that can be placed on a surface or hung up Jamjar is a decorative light that can be placed on a table, or hung from the large handle in bushes, trees or even from a parasol. String lights featuring warm LEDs sit within the clear glass. They automatically illuminate as darkness falls thanks to the integrated sensor. The energy is sourced via the solar panel in the lid of the glass. The solar panel stores the sun light in the integrated battery, which in turn powers the LEDs for free.