Light pole how thick, usually depends on the light pole, single arm lamp or arms the height of the lamp, the minimum wall thickness of 2. 2 -- 5 cm, suitable for: 4 m street lamps, 3 - 3. 5 cm long, 4 - 9 m street lamps, 4 cm - 4. 5, 5; 8-6 cm thick 15 m street lamp. In addition, according to the different requirements of wind resistance, the thickness is different also. Used in solar wind street light materials are usually thicker than the material for ordinary street lamp, LED street light, usually about 4 - 6 cm.