Output voltage characteristic in system lighting road based on heat pipe and thermoelectricWayan Nata Septiadi, Made Ricki Murti, Arliyandi, I.G.A. Pristha Arvikadewi and I Putu Yuda Pramana PutraE3S Web Conf., 67 (2018) 02058DOI: https://doi.org/10.1051/e3sconf/20186702058