The solar street lamp is easy to install, and it does not require additional hard-wire links, and can be mounted on a wall or pole. the diameter of the support rod ranges from 1 to 3 inches. and it saving installation costs and maint before installation.【high efficiency & long lifetime polysilicon solar panels】street light outdoor use polycrystalline silicon photovoltaic panels wi lithium battery, to be fully charged in only 6-8 hours, providing a long working time about 18-20 hours in bright mode.【built-in motion sensor for large angle and area】led solar gutter lights cover a180°angle, 1610sq.ft area. solar motion sensor light outdoor turn 100% brightness mode in 2 seconds when motion is detected. it reverts back to waterproof】solar gutter lights ip65 waterproof grade, rainproof, lightning protection and dustproof, abs plastic anti-uv