add a safety and soft glow to your deck, porch, or other outdoor structure,making nightly stroll safe compatible with the family.[Solar Powered]No cost lighting, powered by the Sun. Only outlay is the cost, after that it's free electricity. No wiring required that gives you the freedom to place the lights.[Automatic turn on]This light has no switch, just pull out the insulator sheet then put into use. On sunny days only takes about 4-5 hours to fully charge,can automatically turns on at whole night.colour: blackMaterial: PVC+ABSsize: 8x4.5x4.4cmPackage Contents: 4*Stair lightsOnly the above package content, other products are not included.Note: Light shooting 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.