This Commercial Solar Billboard Light 2 has a Powerful 15watt Solar Panel that supplies and internal battery pack rated at 3,7 volts 12000 mAh and is Li-on.
This light has built in circuit protection which will not allow overcharging and intelligent micro processor that senses power coming from the solar panel and turns the light on or off according to that power level
2 Light Heads each containing 8 Ultra bright LED's rated at 280 Lux per head
Total Lux in this Commercial Solar Billboard Light 2 kit is 560 Lux.