When purchasing LED furniture, the most critical technical factor is the IP (Ingress Protection) Rating. For outdoor events, ensure a minimum of IP65 to guarantee water and dust resistance. Additionally, verify the Battery Capacity and Type; high-quality lithium batteries should offer 8-12 hours of continuous operation after a full charge. The Shell Material should be UV-resistant PE (Polyethylene) to prevent yellowing and cracking under sunlight, and the LED Light Source should support RGB+W (Red, Green, Blue + White) to provide a full spectrum of colors and true white light.