This recessed louver ceiling light fixture is engineered for professional indoor lighting projects, featuring a high-grade steel housing with electrostatic powder coating applied on an automated coating line and phosphate anti-rust treatment for long-term durability; equipped with a high-reflectance Alanod pure aluminum reflector made in Germany and premium PC lamp holders to securely support LED T5 or T8 tubes, operating on standard 220V input voltage, this fixture is available in multiple configurations and sizes ranging from 605 to 1215 mm in length and up to 605 mm in width, making it suitable for offices, commercial buildings, educational facilities, and large-scale architectural lighting installations requiring uniform illumination and reliable construction. Product size: Overall size range: L605–1215 mm × W300–605 mm × H68 mm (depending on model); Inner / mounting dimensions: As per model table (L1/W1/H1, L2/W2)