Dunedin City Council transport group manager Jeanine Benson said the council received nine complaints relating to light spill since installation of LED lights started in December.
She later confirmed eight of the nine complaints received relating to light spill were resolved by the installation of a shield.
The other complaint was found to be an LED running at a higher power setting on the first night. It automatically corrected itself to the designed dimming profile.
About 4000 lights of the 14,478 to be put in have been installed to date.
Under questioning from Cr Chris Staynes at the council’s August infrastructure committee meeting, former council transport delivery manager Josh von Pein said shielding was "hopefully not as necessary with the LEDs" compared with the ageing high-pressure sodium street lights they were replacing.
"They are more focused and you can point them up and down and away from your property," Mr von Pein said.
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LED lights run at a high colour temperature causing a greater degree of light scatter than high pressure sodium due to a phenomenon known as the Rayleigh Scattering effect. Aside from the direct blinding you suffer from these street lights, reflective glare off the roads, buildings and vehicles has become an issue too. Objects on the roads have become more difficult to see, particularly on wet roads.