This product is solar powered since it is totally powered by the sun all you need to do is place in a sunny location during the day and watch as it automatically lights up at dusk only to turn off again when it becomes light in the morning. The product is illuminated via warm led lights. these led lights are totally energy efficient and safe, producing little to no heat. If used with the dusk sensor then these solar led lanterns will have a long lifespan of around 30,000 hours. Taking size and no wires/cables into account, this product is absolutely perfect, no messy cables or wires to clean or tidy, portable and lightweight. create amazing silhouette lights at night with no hassle.