1) Multi or mono-crystal silicon solar cell2) Super bright LED, emitting seven colors3) Battery: rechargeable Ni-Cd battery4) Lighting time: up to 8hrs, at least 5 days after absorbing one day of sunlight5) Microcomputer control system6) All our products can be designed according to your requirementsTrademark: zhongjiaModel: XT4200B-1AProductivity: 10000 sets/yearUnit Price/Payment: T/T or L/C or D/P at sight