Section 51-11C-405030 - Section C405.3-Lighting for plant growth and maintenanceC405.3Lighting for plant growth and maintenance. All permanently installed luminaires used for plant growth and maintenance shall have a photosynthetic photon efficacy measured at the lamp for luminaires with serviceable or removable lamps or at the luminaire for integrated, nonserviceable luminaires of not less than 1.7 µmol/J for greenhouses and not less than 1.9 µmol/J for all other indoor growing spaces as defined in accordance with ANSI/ASABE S640. EXCEPTIONS: | Buildings with no more than 10 kW of aggregate horticultural lighting load. |
Wash. Admin. Code § 51-11C-405030
Adopted by WSR 22-14-091, Filed 7/1/2022, effective 7/1/2023