Sunflower (Solar LED Lantern) A Stand alone, out of the box, ready to use, maintenance free solar lantern is portable lighting unit consisting of a 1 w hi Lux LED computer simulated reflector design for high light output, high efficiency electronic circuitry, Sealed maintenance free URL battery, UV Stabilized, Transparent acrylic cover, powder epoxy coated steel body and a SPV panel of a 20 years warranty, Technical specification Model Sunflower Basic Function Lighting Solar Panel 3w/5w Battery 6 v, 4.5 Ah LED 1w 6500 Lux output 75 Lux @600 mm Efficiency >92 % Autonomy 4 hrs x 3 days Over voltage cut off point 7.4 v Under voltage cut off point 5.25 v Feature: â—˜ Short circuit protection â—˜ Longer life than CFL Lantern â—˜ Eco friendly zero carbon emission â—˜ Exceeds MNRE Specification of Efficiency and Light output â—˜ Portable, light weight, handy, Metal housing â—˜ Easy operation â—˜ Low battery power consumption