Due to the uneven quality of LED lamps on the mainland market, when buying LED lamps, don't just look at the brightness. Because if you only look at the brightness, the color rendering problem of the LED may be covered up. When choosing an LED light, it can be illuminated on a dark wall when it is powered on. The aperture display of a good LED on the wall is generally uniform and symmetrical, and there are no black spots. However, some bright-looking LED lights will distort their colors when illuminated on tables and chairs. Consumers only need to compare whether the color of the illuminated object is "distorted" when the LED lights are turned on and off to determine whether the LED lights are "distorted" The color rendering is good or bad.