Solar energy system device with 4 bulbs, a 20-watt solar panel, and mobile chargers. Solar-powered device. Desert system, system, energy-saving solar power. For the desert, trips, outings, camps, chalets. *Battery: 12 Volt :: 8 Amp/Lithium (High efficiency and quality) *Equipped with a digital screen to show the battery percentage. * Long wires, each wire with a separate button for four bulbs. * Connection for charging smart devices of all kinds* Charging source: Solar charging. 220 Volt electrical charging.