Gypsum Ceiling Partition Lighting Profiles | 4 LED Channel Types Guide

4 mainstream LED aluminum light channel profiles for flat gypsum board ceilings. We cover their different light emission directions, lighting effects, pros & cons, and professional installation steps. Learn how to choose between upward reflection, slanted reflection, 45° angled light, and vertical direct light models. Perfect for living & dining areas, hallways, offices, and commercial spaces.