This article is aimed at engineering project purchasers and distributors to compare the actual impact of the three types of lamp casings of aluminum/plastic/steel in terms of heat dissipation, corrosion resistance, grounding and safety, impact resistance and UV resistance, weight and installation and maintenance, and manufacturing process consistency., and gives the material selection ideas for panel lamps and floodlights under power density differences.

IntroductionIs Ceiling light suspension really just a simple accessory choice? In many projects, it quietly carries structural and safety responsibility.In this article, you will learn why supplier selection matters. We explain how it affects reliability, compliance, and long-term risk.