Solar Light price Powered by solar: energy-saving eco-friendly, no need of connection to city grid; Integrated lithium battery controller: no complex assembly work, time-and-labor-saving; Lithium battery: 5-8 years lifespan, twice longer than conventional gel battery; Integrated design: battery, solar panel, remote controller, electricity, wire, all parts in one lamp, no need of battery case or bracket parts; IP65 waterproof Lithium battery installed near the lamp: ensures high efficiency of power supply, avoids vandalism or theft of battery; 20W/30W/40W/50W/60W/80W/100W for your option.Solar Light price website:http://www.starryenergy.com/solar-light/