Newfangled Design: Adopt O-Shape design to prevent the rain water percolate into the light lid and lanterns. Built-in light sensor makes it turn on at night or dark environment and turn off on daytime automatically Easy Operate: On/Off switch upneath the lid, normally charge in the sun 6-8 hours will light up 10-12 hours, press the swith to "ON" position when charging. : Solar panel on the lid top, 100% high-efficiency solar powered. Long LED bulbs, energy efficient, 1.2V low voltage, no heat produced, safty to handle by anyone. Diameter: About 8cm Material:plastic colour:As Shown Package Contents: 2 * solar light replacement top parts Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.