50W Cree LED light sources Energy saving, eco friendly, high efficiency Longer life span,super brightness 3 years' warranty.. Detailed specification:1.Model: VSL-180-2.2.Specification(1×40W LED lighting source) H6000.3.Solar Panel: 180W, monocrystalline, 20 years' warranty.4.Rechargable batteries: Maintenance-free 24V/200AH.5.Controller: Digital programmable, switch on/off by light and time ...