Energy saving solar street lights for project, low-carbon and cables free. - During the daytime, they are retracted, and absorbing solar energy. At dusk, they literally light up, can last the whole night when they are full charged. - It can be controlled by Remote. Automatically turn on when dusk. - Powered by a high-quality lithium rechargeable battery that's solar powered. - IP65 waterproof for outdoor. Each light works independently