Features: Detachable lamp and solar panel: you can install this lamp in somewhere the sunlight cannot reach since the solar panel is detachable, which means you can install the lamp indoors whille the solar panel outdoors. Sensitive human induction technology enables it to have a long induction distance from 3 m to 5 m. No radiation, no wire needed, no power fail and no electricity bill. This energy saving solar lamp will offer you better life experience and help you save money. It\'s equipped with monocrystalline silicon chip with high conversion rate and waterproof material so that the solar panel can always absorb enough solar energy even in rainy days. Super large lighting range from 50㎡ to 80㎡. This solar lamp will bring you large range of brightness.