Fairy Berries Glowing LED Lights - Set of 10 What?! Totally need these for the patio. Fairy Berries with glowing white LED balls can be placed anywhere in your garden for your next party or event. Place on the lawn, in the garden, hang from your trees or gazebo. Measuring .75 inch in diameter they produce a moving firefly or fairy light effect that is so unique. The water resistant design lets you place them in your pond, pool or floating centerpieces.