amlong crystal merchandise display base (not rotating or spin), led lighted, mirrored top, 3 color changing lights, silver (set of 2) amlong crystal 3 color changing led lights with a mirror top provide the perfect lighting effects to accent your jellyfish, crystal figurines, or other collectible. low battery indicator: if only one light is operating, please replace batteries with new akaline, niox, or lithium batteries. the units are designed to only have one light turn on when batteries are low/not high enough capacity. often times, this issue can be solved by replacing with recommended battery types.