... . Solar panel: mono-crystalline silicon or polysilicon Battery: rechargeable, nickel-cadmium battery .LED: 5 white LEDSolar cell charging ... Visibility,2 km; Effective Optical Distance: 50 metersFeature: White light beam. Environmentally friendly, solar flashlight is a patented product ... , travel, etc., practical and money-saving, the latest light source is adopted, ultra bright LED, imported solar cells ...