Half solar lamp is charged by daylight via the solar panel on top. The energy is stored in a powerful lithium battery of 2200mAh and Halvar can then shine for many hours with the help of energy-saving LED diodes. Even on a cloudy day, the solar panel reaches 50% of its maximum capacity and if that is not enough, it can also be charged via USB. The solar panel (100mAh) is of the Mono Cristallina type. which is the most exclusive technology with the highest energy efficiency. Alvar has a 3-step dimmer function with 155/83/55lm that you adjust by pulling the string. When the battery is fully charged, Halvar lights up for 6h/12h/18h depending on the brightness.