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Commissioners debate 2,700 K code mandate, dark-sky and retrofit options
Summary
Commissioners and a resident questioned the city's 2,700 Kelvin requirement, discussed the availability of amber retrofit filters and differences between street and parking-lot lighting, and reviewed the code deviation criteria for nonresidential projects.
At the Porterville Special Planning Commission meeting, commissioners and staff debated the city's lighting standards after an applicant asked for a deviation from the 2,700 Kelvin requirement for new construction.
A meeting participant read the ordinance language aloud and noted that "2,700 Kelvin color temperature is mandatory for new construction," prompting commissioners and staff to clarify where that requirement appears in the code and whether exceptions are available for nonresidential projects. Staff pointed to the code section that allows a deviation for nonresidential lighting and outlined the three criteria the commission should evaluate before granting an exception.
A nearby resident raised concerns about LED's "blue spike" and noted other local streetlights have amber filters. Staff and the applicant said some fixture heads must be ordered at a given color temperature and that retrofit filters are not always available for every fixture type. Commissioners balanced those practical procurement limits against neighborhood impacts and security needs; one commissioner said cooler light can improve security-footage clarity.
Staff will enforce the approved conditions through the permit process and verify dimming programming and fixture heights at inspection.
