A solar Photovaltic Lantern is a lighting system consisting of a PV module of 10wp, CFL, battery and electronics, all placed in a sutiable housing, and is similar to the conventional 'laltain'. The battery will be charged by electrictiy generated through the solar Photovaltic module.
The lantern is basically a portable lighting device suitable for either indoor or outdoor Lighting covering full range of 360 degrees. The daily mean opertaing of the lantern will be three hours per day for a CFL 7 watt lantern or four hour per day for a CFL 5 watt lantern, with an average daily solar isolation of 5 KWh/m^2 on a horizontal surface.
Presently, Government of India is providing a subside of Rs.1500 per unit and state Govt. is also considering additonal subside. The total cost of such a unit is usally around Rs 4000 and the beneficiaries may have to pay between Rs.2000 to Rs.2500.