Ikea SOLVINDEN 12" LED solar-powered pendant lamp, 12 inches, globe-Blue Easy to use because no cords or plugs are needed. Helps you save energy and reduce your environmental impact because it is powered by a solar panel that converts sunlight into electricity. Uses LEDs, which consume up to 85% less energy and last 20 times longer than incandescent bulbs. 1 rechargeable battery (AAA 1.2V) that stores energy from the sun is included. The battery can be replaced and lasts for about 2 years. Size: 12 in Position the solar panel for maximum exposure to sunlight. Recharging time is 9-12 hours in sunlight, but over 12 hours on a cloudy day. When the battery is fully charged, the product will give full light for approx. 12 hours.