Singh, O.P.; Singh, S.K.; Gaur, A. - In: Renewable Energy 11 (1997) 4, pp. 421-426
The solar lantern (manufactured by BHEL) could regularly be lit for 5–6 h up to a maximum of 7 h, if the battery was fully charged. It is desirable, for regular use, that the solar lantern should be lit for not more than 5 h a day if the clear sky condition exists. If the weather is partially...