MSL-R22Specifications & DescriptionMaterialReinforced plastic and PCSolar CellMono-crystalline SiliconStorage ComponentNi-MH AA battery; Or Super CapacitorLight Source1pc (single side ) or 2pcs (dural sides) of super bright LEDsColor of LightRed, green, blue, white, yellowLight ModeFlash typeProduct Size241x111.5x88mmWork temperature-40 to +75Visible distance>800mWork TimeAfter 8hrs fully charge, the flash type >14 nights; constant type >7 nights contineously.Life Time3-5 years for battery, Over 15 years for capacitor