{"id":"lighting-exterior-led","version":"0.1.0","classification":{"uniformat":"D5020"},"names":["Exterior and site lighting, LED"],"aliases":["wall pack","pole light","parking lot light"],"service_life":{"median_years":17.5,"range_years":[10,25],"range_basis":"source_spread"},"pm_tasks":[],"basis":[{"type":"public_document","life_type":"planning","title":"CNA e-Tool Estimated Useful Life Table","by":"U.S. Department of Housing and Urban Development","url":"https://www.hud.gov/sites/documents/eul_for_cna_e_tool.pdf","page":3,"code":"HUD CNA 3.2.8.2.7","label":"Pole mounted lights","years":25,"note":"Same life for family and elderly properties. US multifamily housing. HUD gives pole-mounted site lights 25 years and building-mounted lights 10, without naming the lamp technology."},{"type":"public_document","life_type":"planning","title":"CNA e-Tool Estimated Useful Life Table","by":"U.S. Department of Housing and Urban Development","url":"https://www.hud.gov/sites/documents/eul_for_cna_e_tool.pdf","page":3,"code":"HUD CNA 3.2.8.2.9","label":"Building Mounted Lighting","years":10,"note":"Same life for family and elderly properties. US multifamily housing."}],"confidence":{"grade":"C","sample_size":null},"open_questions":["Only one source so far: HUD planning lives for US multifamily housing. Canadian and observed sources are needed.","No preventive maintenance tasks are sourced yet."],"contributors":["unfinished.one editors"],"last_reviewed":"2026-10-21","canonical_url":"https://unfinished.one/c/lighting-exterior-led","versioned_url":"https://unfinished.one/c/lighting-exterior-led/v/0.1.0","licence":"CC-BY-4.0","citation":"unfinished.one (2026). Exterior and site lighting, LED, v0.1.0. https://unfinished.one/c/lighting-exterior-led/v/0.1.0"}