{"L1_core": {"type": "tolerance_class", "domain": "specification", "category": "led_binning"}, "L3_technical": {"sdcm": 3, "standards": ["ANSI_C78.377", "SDCM"], "macadam_steps": 3, "perceptibility": "detectable_acceptable"}, "L2_specification": {"type": "step_down_specification", "value": 3, "applications": ["general_lighting", "commercial"], "tolerance_level": "intermediate"}}