This solar column lamp takes in.zero electricity cost, zero wiring, and zero maintenance in. to the extreme: during the day, the high-efficiency photovoltaic panel converts sunlight into electricity and stores it in the new generation NiMH battery. In the evening, it automatically senses and turns on, continuously outputting 25 lumens of warm white light for 7 to 8 hours, which is bright enough to replace traditional plug-in wall lamps. The set is thoughtfully equipped with three replaceable bases. Whether it's a 4x4 (actual 3.5 in.), 5x5 (4.5 in.), or 6x6 (5.5 in.) round or square wooden stakes, they can all be securely inserted without the need for tools for DIY installation. The entire machine is equipped with an IP44-level waterproof casing, UV-resistant and non-fading plastic, and a lifetime non-replaceable LED light source. It can remain as stable as a rock even in scorching sun, heavy rain or the coldest days of winter. At the same time, it eliminates the expensive cost and safety hazards of hiring electricians for wiring, truly achieving a one-time investment and long-term enjoyment of the cost-saving, trouble-free and worry-free night garden atmosphere brought by green energy.