( ( Solar lights ) ( ( are ( charged ( ( ( by ( the ( sun light ) ) ) and ) ( at ( night ( run ( on ( their ( own batteries ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Solar) (NNS lights)) (VP (VBP are) (VP (VBN charged) (PP (PP (IN by) (NP (DT the) (NN sun) (NN light))) (CC and) (PP (IN at) (NP (NP (NN night)) (VP (VBN run) (PP (IN on) (NP (PRP$ their) (JJ own) (NNS batteries))))))))) (. .)))
Solar lights are charged by the sun light and at night run on their own batteries.
(ROOT (S (NP (NP (RB Only) (DT the) (NN sun)) (PP (IN in) (NP (PRP$ our) (JJ solar) (NN system)))) (VP (VBP give) (PRT (RP off)) (NP (PRP$ their) (JJ own) (NN light))) (. .)))
Only the sun in our solar system give off their own light.